Podcasts about debug

O que mudou do mercado de desenvolvimento nos últimos 2 anos? Convidei Tiago Aguiar para discutir esse assunto. Fizemos um balanço sobre alguns pontos importantes a ser considerado na carreira de desenvolvimento de software, e como desenvolvedores podem se capacitar com tanta mudança e tendência em IAs. Assuntos abordados no tema Introdução ao tema O que mudou no mercado de trabalho de 2024 para 2025 Modelo de trabalho híbrido O que Devs iniciantes ou não precisam se atualizar Comentando alguns tópicos da pesquisa Spiceworks report Como usar ferramentas de IA para produtividade sem depender dela Devs que usam Copilot tem 55% mais chance de aprovação em entrevistas Capacitação: como se capacitar em um mundo com tanta mudança? Portfólio relevante no Github Hard skills não é o suficiente é preciso também de soft skills Inglês ja não é mais o diferencial Otimizar sistemas críticos torna um Dev de valor Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug globalhttps://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587 Patrocinadora do programa https://king.host/ https://www.jetbrains.com/pt-br/lp/devecosystem-2024/ https://www.gitclear.com/ai_assistant_code_quality_2025_research https://www.spiceworks.com/research/it-report/ Vídeo sobre estrutura de dados https://www.youtube.com/watch?v=7kf1SACqlRw System Design interview Google https://www.youtube.com/watch?v=Ti5vfu9arXQ Dynamic programming https://www.youtube.com/watch?v=Hdr64lKQ3e4 Participantes Jéssica Nathany (Software Developer e host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/ Weslley Fratini (Software Developer e co-host)LinkedIn: https://www.linkedin.com/in/weslley-fratini/ Tiago Aguiar (Desenvovledor .NET na Redarbor Brasil e Criador de conteúdo)Site: https://beacons.ai/aguiardev Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

AI-based coding has exploded in popularity on the promise that it will make developers' jobs faster and easier. But it's also resulted in something else: a vast increase in lines of code, and thus the likelihood of bugs resulting in crashes or other mishaps. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Já parou para pensar que os Sistemas Embarcados estão presentes em praticamente tudo ao nosso redor? Desde o seu smartphone até a sua geladeira, passando por carros, aviões e dispositivos médicos, esses sistemas são a base da tecnologia moderna. Neste programa, conversamos com Gleisson Bezerra, especialista em IO, Machine Learning e Sistemas Embarcados que explicou tudo pra nós. Assuntos abordados no tema O que são Sistemas Embarcados e porque eles são tão importantes? Linguagens utilizadas: C, C++, Python, Rust e Assembly Definição técnica: hardware + software dedicado a uma função específica Diferença entre sistemas embarcados e computadores tradicionais Dados curiosos: exemplos de onde os sistemas embarcados estão presentes (eletrodomésticos, carros, dispositivos médicos, etc.) Aplicações e Sistemas Críticos: Indústria automotiva: sistemas de controle, sensores, carros autônomos, smart home, agro, e etc. Aplicações real-time Inteligência Artificial em sistemas embarcados Por onde começar a desenvolver sistemas embarcados: ferramentas, linguagens como testar Habilidades necessárias: programação, eletrônica, pensamento lógico Mercado de trabalho: oportunidade de crescimento, carreira e formação Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug Global https://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587 Pesquisa de satisfação Café Debug 2024 https://docs.google.com/forms/d/e/1FAIpQLSdlkPGS-sqfD3QOmkddRDqj7dlYE8mpIlZXORIfTtn-MztKKA/viewform Patrocinadora do programa https://king.host/ https://embarcados.com.br/o-que-sao-sistemas-embarcados/ https://victorvision.com.br/blog/sistemas-embarcados/ https://www.linkedin.com/pulse/voc%C3%AA-inteiro-dentro-do-metaverso-parte-1-de-2-gleisson-s-bezerra/ https://www.youtube.com/watch?v=J2pHgzdAJRk Participantes Jéssica Nathany (Software Developer e host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/ Weslley Fratini (Software Developer e co-host)LinkedIn: https://www.linkedin.com/in/weslley-fratini/Gleisson Bezerra (Especialista em Machine Learning no Google e PhD no ITA)LinkedIn: https://www.linkedin.com/in/gleisson/ Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

Neste programa fizemos um ótimo bate papo com Ilya Brotzky para falar sobre a Van Hack. A Van Hack é uma plataforma que qualifica e profissionais da área de tecnologia para serem contratados por empresas de tecnologia no Canada, Estados Unidos e países europeus. Ficou interessado? Então escuta esse programa até o final e deixe seu comentário. Assuntos abordados no tema Conhecendo a Van Hack Um pouco sobre https://vanhack.com/vanhackcon Sobre funciona o programa para contração de Devs para exterior Como Devs devem se preparar: Mercado, preparação e inspiração Linguagens de programação e tecnologias mais procuradas no mercado de desenvolvimento de software por empresas do exterior Qual nível de inglês é exigido para trabalhar em empresas como Canadá ou europa? Dicas, orientações para quem busca um emprego no exterior: melhor caminho Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug Global https://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587 Pesquisa de satisfação Café Debug 2024 https://docs.google.com/forms/d/e/1FAIpQLSdlkPGS-sqfD3QOmkddRDqj7dlYE8mpIlZXORIfTtn-MztKKA/viewform Patrocinadora do programa https://king.host/ Link do evento Van Hack https://vanhack.com/candidates/events/brazil Site Van Hack https://vanhack.com/ Participantes Jéssica Nathany (Software Developer e Host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/ Weslley Fratini (Software Developer e Co-host)LinkedIn: https://www.linkedin.com/in/weslley-fratini/Ilya Brotzky (CEO na Van Hack)LinkedIn: https://www.linkedin.com/in/ilyabrotzky/ Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

"Je suis trop émotif", "j'étais trop dans l'émotionnel, j'ai mal décidé", "il faut que tu décides rationnellement, pas avec tes émotions!"

Neste programa, conversamos com o Italo Oliveira que contou sua experiência em tirar seu projeto do papel e transformar em negócio. Compartilhou os desafios aprendidos, a importância de não escalar o negócio de início e as lições aprendidas com os usuários da plataforma. Assuntos abordados no tema Introdução - origem do projeto Tecnologia e empreendedorismo Como conciliar sobre carreira internacional e o empreendedorismo? Abri meu negócio. Continuo codando? Como gerenciar meu tempo para administrar meu negócio e continuar ainda escrevendo códigos? Como manter a paixão por escrever softwares e continuar os estudos sem desequilibrar os negócios? Como pensar em um MVP? Qual melhor caminho? Desafios e como ser um bom gestor Desenvolvedores precisam empreender? Visão futura e conselhos para novos empreendedores devs Stack utilizadaProgramador(a) vai sempre ser um programador(a) ou é natural ir para o caminho da gestão? Gerenciamento de tempo Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug Global https://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587Patrocinadora do programa https://king.host/ Pesquisa de satisfação Café Debug 2024 https://docs.google.com/forms/d/e/1FAIpQLSdlkPGS-sqfD3QOmkddRDqj7dlYE8mpIlZXORIfTtn-MztKKA/viewform https://cardapiomusical.pages.net.br/ Participantes Jéssica Nathany (Software Developer e host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/ Weslley Fratini (Software Developer e co-host)LinkedIn: https://www.linkedin.com/in/weslley-fratini/Italo Oliveira (Software Engineer na Nodejs Source)LinkedIn: https://www.linkedin.com/in/italojs/ Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

Neste episódio, tivemos o prazer de conversar com Ahirton Lopes e Felipe Teodoro, dois especialistas em machine learning. Durante nossa discussão, exploramos a importância do aprendizado de máquina e sas diferenças essenciais aos modelos machine learning ML e inteligência artificial IA. Mas será que é preciso ser ser um PhD para trabalhar com machine learning? Assuntos abordados no tema Breve contextualização sobre o que é Machine Learning (ML) e sua importância no cenário tecnológico atual. Definição técnica: diferença entre ML, IA e Deep Learning Breve explicação sobre redes neurais Exemplos simples de algoritmos de ML (regressão linear, redes neurais, etc.). Como criar modelos básicos e rodar localmente? Futuro do ML (AutoML, Quantum Machine Learning, Edge AI) Cálculos, álgebra linear, matemática… Impacto no mercado de trabalho: novas profissões e habilidades necessárias. Por onde começar? Carreira, mercado de trabalho e estudos É possível aprender o básico e explorar o machine learning sem trabalhar na área? Informações úteis e divulgações Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug Global https://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587 Pesquisa de satisfação Café Debug 2024 https://docs.google.com/forms/d/e/1FAIpQLSdlkPGS-sqfD3QOmkddRDqj7dlYE8mpIlZXORIfTtn-MztKKA/viewform https://cloud.google.com/learn/artificial-intelligence-vs-machine-learning?hl=pt-BR https://www.bbc.com/portuguese/geral-62803019 https://robertaduarte.com/ Participantes Jéssica Nathany (Software Developer e host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/ Weslley Fratini (Software Developer e co-host)LinkedIn: https://www.linkedin.com/in/weslley-fratini/Felipe Teodoro (Diretor de Ciência de Dados e Engenheiro de Dados na CCapital)LinkedIn: https://www.linkedin.com/in/teodorofelipe/ Ahirton Lopes (AI Data Manager, Teacher 5x MVP Microsoft Google Developer Expert)LinkedIn: https://www.linkedin.com/in/ahirtonlopes/ Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

Invest Like the Best Key Takeaways  Identify and invest in outliers: The best venture capital investors recognize outlier potential when they see it and have a curiosity to discover what makes the outlier tick and WHY they tick that way On being a VC or a founder: Inherent builders should be in the field – they should be building companies, not coaching other builders Debug problems as far upstream as possible; take the rocks out of the river so the water can flow as fast as possible  Black magic is reserved for founders; every other area of the company-building process is mere mortal stuff Stewardship over ownership: The goal is to leave your creation in a better place for the next generation It is okay to choose the parallel tracked path of banking or consulting, and it is okay to take risks, but it is not okay to do one and spend your life thinking you did the other The most common mistake that investors make is doing something contrary to the best interests of the founder Traits of the best investment memos:(1) Clearly state the one or two strongest reasons to invest(2) Two to three pages max(3) Present clear data from the opposing side(4) argue why the investment should happen despite the opposing dataSuccess starts at the foundational layer: Great culture is downstream of getting the foundation right and fostering internal belief, which is all a firm needs to be successful Performance is the cultural component that matters mostRead the full notes @ podcastnotes.orgWelcome to this classic episode. Classics are my favorite episodes from the past 10 years published once a month. These are N of one conversations with N of one people. There's nobody I've met quite like Doug Leone. Doug led one of the world's most successful venture firms, Sequoia, for over 25 years after he was given responsibility for the firm by its founder, Don Valentine, in 1996. Alongside Mike Moritz, the pair managed its expansion from a single $150m early-stage fund into an $85 billion global powerhouse. It was a privilege to sit down with Doug and learn from him. We talk about his tough start at Sequoia, get into the technicalities of great go-to-market motions, and survey his advice for other investors in the industry. A key theme that will stick with me from this conversation is Doug's insistence on keeping things simple and clear. I listen to this at least once a year. I hope you enjoy it. Subscribe to Colossus Review. For the full show notes, transcript, and links to mentioned content, check out the episode page here. ----- This episode is brought to you by Passthrough. Passthrough streamlines subscription documents, KYC, and AML compliance, so you can focus on running your fund, not managing paperwork. New SEC Update 31 CFR hits investment firms in under a year, and managers are getting ready for it now. If you think basic OFAC screening is enough, think again. You'll need continuous monitoring of your investors and all their beneficial owners across multiple watchlists, plus a comprehensive anti money laundering program. Passthrough has already processed 50,000 LPs and built the complete solution. Don't risk SEC deficiency letters, fines, or regulatory enforcement. Visit passthrough.com to get compliant now. ----- Invest Like the Best is a property of Colossus, LLC. For more episodes of Invest Like the Best, visit joincolossus.com/episodes.  Past guests include Tobi Lutke, Kevin Systrom, Mike Krieger, John Collison, Kat Cole, Marc Andreessen, Matthew Ball, Bill Gurley, Anu Hariharan, Ben Thompson, and many more. Stay up to date on all our podcasts by signing up to Colossus Weekly, our quick dive every Sunday highlighting the top business and investing concepts from our podcasts and the best of what we read that week. Sign up here. Follow us on Twitter: @patrick_oshag | @JoinColossus Show Notes [00:00:00] Welcome to Invest Like the Best [00:05:21] What Don Valentine's heart was like [00:08:30] The most productive and unproductive parts of Don's toughness  [00:12:55] Why it's so important to understand someone's core motivations [00:18:44] The most formative experiences he had prior to becoming an investor that impacted his investing the most  [00:22:37] What venture looks like to him today relative to his prior career [00:28:37] Whether or not he'd go into venture today if he was in his late 20s  [00:34:10] Helping companies circumnavigate mediocre positioning  [00:39:15] How interacting with companies early on has changed over the ears [00:43:12] Whether or not new entrants into venture should build firms with enterprise value  [00:48:14] Sussing out the killer gene in somebody  [00:51:04] How successful people can instill the lessons learned from hardship into their children  [00:54:30] Whether or not competitive advantage can be architected ahead of time when building a company   [00:57:21] The early 2000s clawback at Sequoia and what navigating that period was like  [01:01:06] What he's learned about picking the right LPs and partnering with them [01:04:18] Making sure that performance is on everyone's minds all the time  [01:09:59] The kindest thing anyone has ever done for him

Invest Like the Best Key Takeaways  Identify and invest in outliers: The best venture capital investors recognize outlier potential when they see it and have a curiosity to discover what makes the outlier tick and WHY they tick that way On being a VC or a founder: Inherent builders should be in the field – they should be building companies, not coaching other builders Debug problems as far upstream as possible; take the rocks out of the river so the water can flow as fast as possible  Black magic is reserved for founders; every other area of the company-building process is mere mortal stuff Stewardship over ownership: The goal is to leave your creation in a better place for the next generation It is okay to choose the parallel tracked path of banking or consulting, and it is okay to take risks, but it is not okay to do one and spend your life thinking you did the other The most common mistake that investors make is doing something contrary to the best interests of the founder Traits of the best investment memos:(1) Clearly state the one or two strongest reasons to invest(2) Two to three pages max(3) Present clear data from the opposing side(4) argue why the investment should happen despite the opposing dataSuccess starts at the foundational layer: Great culture is downstream of getting the foundation right and fostering internal belief, which is all a firm needs to be successful Performance is the cultural component that matters mostRead the full notes @ podcastnotes.orgWelcome to this classic episode. Classics are my favorite episodes from the past 10 years published once a month. These are N of one conversations with N of one people. There's nobody I've met quite like Doug Leone. Doug led one of the world's most successful venture firms, Sequoia, for over 25 years after he was given responsibility for the firm by its founder, Don Valentine, in 1996. Alongside Mike Moritz, the pair managed its expansion from a single $150m early-stage fund into an $85 billion global powerhouse. It was a privilege to sit down with Doug and learn from him. We talk about his tough start at Sequoia, get into the technicalities of great go-to-market motions, and survey his advice for other investors in the industry. A key theme that will stick with me from this conversation is Doug's insistence on keeping things simple and clear. I listen to this at least once a year. I hope you enjoy it. Subscribe to Colossus Review. For the full show notes, transcript, and links to mentioned content, check out the episode page here. ----- This episode is brought to you by Passthrough. Passthrough streamlines subscription documents, KYC, and AML compliance, so you can focus on running your fund, not managing paperwork. New SEC Update 31 CFR hits investment firms in under a year, and managers are getting ready for it now. If you think basic OFAC screening is enough, think again. You'll need continuous monitoring of your investors and all their beneficial owners across multiple watchlists, plus a comprehensive anti money laundering program. Passthrough has already processed 50,000 LPs and built the complete solution. Don't risk SEC deficiency letters, fines, or regulatory enforcement. Visit passthrough.com to get compliant now. ----- Invest Like the Best is a property of Colossus, LLC. For more episodes of Invest Like the Best, visit joincolossus.com/episodes.  Past guests include Tobi Lutke, Kevin Systrom, Mike Krieger, John Collison, Kat Cole, Marc Andreessen, Matthew Ball, Bill Gurley, Anu Hariharan, Ben Thompson, and many more. Stay up to date on all our podcasts by signing up to Colossus Weekly, our quick dive every Sunday highlighting the top business and investing concepts from our podcasts and the best of what we read that week. Sign up here. Follow us on Twitter: @patrick_oshag | @JoinColossus Show Notes [00:00:00] Welcome to Invest Like the Best [00:05:21] What Don Valentine's heart was like [00:08:30] The most productive and unproductive parts of Don's toughness  [00:12:55] Why it's so important to understand someone's core motivations [00:18:44] The most formative experiences he had prior to becoming an investor that impacted his investing the most  [00:22:37] What venture looks like to him today relative to his prior career [00:28:37] Whether or not he'd go into venture today if he was in his late 20s  [00:34:10] Helping companies circumnavigate mediocre positioning  [00:39:15] How interacting with companies early on has changed over the ears [00:43:12] Whether or not new entrants into venture should build firms with enterprise value  [00:48:14] Sussing out the killer gene in somebody  [00:51:04] How successful people can instill the lessons learned from hardship into their children  [00:54:30] Whether or not competitive advantage can be architected ahead of time when building a company   [00:57:21] The early 2000s clawback at Sequoia and what navigating that period was like  [01:01:06] What he's learned about picking the right LPs and partnering with them [01:04:18] Making sure that performance is on everyone's minds all the time  [01:09:59] The kindest thing anyone has ever done for him

Wherein Chris has a benchy and Frank is stuck in the 90's.

Neste programa, conversamos com a Julia Moesch e Camila Hegler que tirou as nossas dúvidas sobre a carreira de um consultor SAP. SAP (System Applications and Products) é uma empresa alemã criadora de software de gestão de empresas. Ao longo de quatro décadas, a SAP evoluiu de uma empresa pequena e regional para uam organização de alcance mundial. Assuntos abordados no tema O que é SAP (Systems Applications and Products) SAP foi desenvolvido com uma linguagem própria chamada ABAP (Advanced Business Applications Programming) Quais são as vantagens do Sistema SAP e como ele melhora a realidade corporativa? Módulos SAP (Financial Accounting, Controlling, Production Planning, Logistics, Execution, Sales e Distribution) Como funciona a implementação do SAP nas empresas? Como é o trabalho? Dia a dia de um consultor Diferença entre Consutlor SAP e Desenvolvedor ABAP Certificações SAP Evolução de carreira e especializações Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug Global https://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587 Pesquisa de satisfação Café Debug 2024 https://docs.google.com/forms/d/e/1FAIpQLSdlkPGS-sqfD3QOmkddRDqj7dlYE8mpIlZXORIfTtn-MztKKA/viewform https://king.host/ patrocinado pela King Host https://www.sap.com/brazil/about/what-is-sap.html https://blog.brq.com/o-que-e-sistema-sap/ https://www.primeinstitute.com/noticias/em-que-linguagem-de-programacao-o-sap-e-feito-452 https://medium.com/@eng.damasceno/abap-que-linguagem-%C3%A9-essa-9c1c3c25ba09 https://www.tabnews.com.br/murillonadal/o-que-e-o-abap Participantes Jéssica Nathany (Software Developer e host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/ Weslley Fratini (Software Developer e co-host)LinkedIn: https://www.linkedin.com/in/weslley-fratini/Camila Hegler (SAP SuccessFactors & HXM Consult)LinkedIn: https://www.linkedin.com/in/camila-hengler-rodrigues-1b371115/ Julia Moesc (SAP SuccessFactors & HXM Consult)LinkedIn: https://www.linkedin.com/in/j%C3%BAlia-moesch-de-moraes-4368465/ Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

Tu es le pilier sur qui tout le monde s'appuie ? L'épaule qu'on vient chercher pour pleurer ? Celui ou celle qui “dit les choses” sans filtre ? Tout ça, ce sont des rôles. Mais est-ce vraiment ta place ? Dans cet épisode, on va parler de la différence entre rôle et place : Pourquoi on adopte des rôles ? Comment les jeux psychologiques nous empêchent de trouver notre place ? Ce que signifie "fermer son territoire psychique"  Bonne écoute,  Laura  Pour aller plus loin : 

Neste programa conversamos com o Victor Hugo e o Ahirton Lopes, dois especialistas em Inteligência Artificial e aprendizado de máquina. Discutimos sobre a o modelo da DeepSeek e a intensa competição entre gigantes da tecnologia na corrida pela em IA, revelando como essa disputa moldando o futuro digital. Conversamos sobre a expansão e o tratamento dos dados gerados por esses modelos. Assuntos abordados no tema DeepSeek o BOOMM Explorando a plataforma DeepSeek e suas principais funcionalidades e o diferencial das outras IAs Mundo open source Guerra comercial de IAs: como a “guerra” está moldando inovação e a economia digital Impacto dos dados para o treinamento de modelos machine learning Exploração dos últimos avanços em machine learning: aprendizado profundo automatizado, algoritmos e transparências Mercado de trabalho: com tanta IAs sendo criada, como podemos profissionais devem-se capacitar ara não ficar para trás? IA vai substituir ohttps://www.rdworldonline.com/within-hours-open-source-ai-developer-replicates-openais-deep-research/ dev? e o pessoal de dados? Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug Global https://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587 Pesquisa de satisfação Café Debug 2024 https://docs.google.com/forms/d/e/1FAIpQLSdlkPGS-sqfD3QOmkddRDqj7dlYE8mpIlZXORIfTtn-MztKKA/viewform https://www.victorhg.com/post/deepseek-e-o-real-impacto-do-open-source https://mittechreview.com.br/deepseek-ia-china/ https://semianalysis.com/2023/05/04/google-we-have-no-moat-and-neither/ https://medium.com/@GenerationAI/how-deepseek-r1-zero-was-reproduced-in-30-4e394cd3dd58 https://www.maritaca.ai/ https://www.rdworldonline.com/within-hours-open-source-ai-developer-replicates-openais-deep-research/ https://huggingface.co/ Participantes Jéssica Nathany (Software Developer e host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/ Weslley Fratini (Software Developer e co-host)LinkedIn: https://www.linkedin.com/in/weslley-fratini/Victor Hugo (Tech Executive, Digital & Agile Expert, Lambda3 Founder, Master of Science Candidate at USD)LinkedIn: https://www.linkedin.com/in/victorhg/ Ahirton Lopes (AI Data Manager, Teacher 5x MVP Microsoft Google Developer Expert) LinkedIn:https://www.linkedin.com/in/ahirtonlopes/ Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

With tracks from Max Essa, Grabo'sky, Romanski, Manuel Tur, Scruscru & Dwaal, Erol Alkan, Debug, Children Of Toni, Martin Matiske, C.O.M.B.I., Totem Projects, Tech Support, Sex Judas Feat. Ricky, Franc Spangler & Hudson's Choice, Adam Stegemann & Universal Cave, Jaz, YUF-O, Yuksek & Diogo Strausz, Cale Parks, Jan Driver, Gazpa. Contact: dj@ribeaud.ch.

Neste programa, tivemos um bate papo interessante sobre as tendências e mudanças do IoT para 2025. Conevrsamos sobre dispositivos, o crescimento do IoT, dados e cidades inteligentes. Como a integração da IA com o IoT está sendo um diferencial competitivo na area digital. Assuntos abordados no tema Internet Of Things (IoT) breve introdução Tendências e avanços do IoT em 2025 Expansão das redes 5G e 6G - O 5G oferece maior velocidade e menor latência, permitindo que os dispositivos IoT se conectem mais rapidamente e em tempo real, o que é essencial para aplicações como carros autônomos e cidades inteligentes Inteligência Artificial integrada ao IoT Cidades Inteligentes e desafios urbanos Como IoT pode melhorar criar empregos em 2025 Como fica a imensidão de dados com o crescimento do IoT? Como iniciar com pequenos dispositivos IoT? Por onde começar Mercado de trabalho / carreira Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug Global https://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587 Responda nosas pesquisa Café Debug 2025 https://docs.google.com/forms/d/e/1FAIpQLSdlkPGS-sqfD3QOmkddRDqj7dlYE8mpIlZXORIfTtn-MztKKA/viewform https://blog.algartelecom.com.br/iot-avancos/#Tendencias_e_avancos_da_IoT_em_2025 https://ascenty.com/blog/artigos/a-inteligencia-artificial-na-era-da-internet-das-coisas/ https://epma.medium.com/como-o-iot-pode-criar-empregos-em-2025-e-o-que-o-brasil-pode-aprender-com-a-china-b6b0bef1f6cc https://www.industria40.ind.br/artigo/25729-integracao-ia-iot-diferencial-competitivo-era-digital Participantes Jéssica Nathany (Software Developer e host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/ Weslley Fratini (Software Developer e co-host)LinkedIn: https://www.linkedin.com/in/weslley-fratini/Gleisson Bezerra (Especialista em Machine Learning no Google e PhD no ITA)LinkedIn: https://www.linkedin.com/in/gleisson/ Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

Comment réagir face à un Persécuteur ?

Original text by Darin Adler. An overview of the Motorola MEK6800D2 single board computer/development kit. Roger Heinen “engineers are a dime a dozen” story from episode 40 of the Algorithms + Data Structures = Programs Podcast. The General Magic documentary is a good hard look at how General Magic fizzled out, though it somehow managed to survive long enough to power the General Motors OnStar service. Darin Adler later joined the Nautilus (a.k.a. the GNOME desktop file manager) development team with Andy Hertzfeld at Eazel. Demonstration. Bryan Cantrill recounts the object-oriented operating system craze of the 1990s and counts the corpses: Spring, Taligent, Copland, and JavaOS. Lisa Melton recounts crisis management at Eazel and the history of the Safari and WebKit project on episode 11 of the Debug podcast. Waldemar Horwat went on to head JavaScript development at Netscape. Like many other eerily smart math and programming language types, he now works at Google.

Tout donner pour les autres, tout anticiper et penser que tu n'as pas le choix… Ça te parle ? Être Sauveur, c'est porter un rôle épuisant, parfois sans même s'en rendre compte. 

Neste programa, abordaremos os desafios complexos e as nuances das arquiteturas distribuídas. Discutiremos como essas estruturas influenciam a escalabilidade, performance e a gestão de dados em ambientes de TI modernos. Este episódio foi criado para oferecer uma visão detalhada e insights valiosos sobre como otimizar e enfrentar os obstáculos comuns em sistemas distribuídos. Assuntos abordados no tema Introdução aos participantes Contexto do convidados Explicação do que são arquiteturas distribuídas e por que são essenciais para sistemas modernos e escaláveis Discussão sobre as complexidades de realizar operações CRUD (Create, Read, Update, Delete) de forma isolada e os desafios de consistência de dados Teorema CAP A importância do algoritmo em cenários distribuídos: eficientes são vitais para gerenciar a latência e a sincronização em sistemas distribuídos Observabilidade e Monitoramento (conceito e ferramentas) Dica de estudos Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug Global https://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587 Pesquisa de satisfação Café Debug 2024 https://docs.google.com/forms/d/e/1FAIpQLSdlkPGS-sqfD3QOmkddRDqj7dlYE8mpIlZXORIfTtn-MztKKA/viewform https://github.com/systemdesignfightclub/SDFC?tab=readme-ov-file https://medium.com/@tanstorm/cap%C3%ADtulo-10-arquitetura-distribu%C3%ADda-arquitetura-descentralizada-e-redes-sociais-federadas-23c27c07ae6 https://medium.com/@ruan.victor/breve-introdu%C3%A7%C3%A3o-ao-teorema-cap-eb8bb0a0d7a4 https://medium.com/@jessicanathanyf/sobre-nosql-cec7410e4413 https://www.youtube.com/@CoreDumpped Participantes Jéssica Nathany (Software Developer e host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/Arthur Costa (Software Engineer na Fanduel)LinkedIn: https://www.linkedin.com/in/arthur-alves-da-costa/Projeto: https://linktr.ee/techishthoughts Otavio Celestino (Senior Software Engineer no Mercado Libre)LinkedIn: https://www.linkedin.com/in/otaviocelestino/Youtube: https://www.youtube.com/@huncoding Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

Neste programa aborgadamos o tema da importância de lidar com aplicações legadas e os impactos comerciais na da refatoração. Discutimos também sobre projetos legados, negócios e desafios. Este programa foi projetado para proporcionar uma discussão aprofundada e informativa sobre a refatoração e gestão de aplicações legadas. Assuntos abordados no tema O que constitui aplicações legadas? Desafios que empresas enfrentam ao trabalhar com sistemas legados Exploração das razões pelas quais as empresas decidem refatorar sistemas legados em vez de substituí-los Como a refatoração pode levar a melhorias em eficiência, segurança e escalabilidade Análise de como a refatoração impacta as operações comerciais, a satisfação do cliente e a estratégia de negócios em geral Debate sobre o futuro dos sistemas legados na paisagem tecnológica em rápida evolução Como as empresas podem equilibrar inovação com a manutenção de sistemas mais antigos? Links úteis Nosso Discord: https://discord.com/invite/hGpFPsV2gB Café Debug Global https://open.spotify.com/show/3S1OK2ecjZj7zoaZ34bFkP?si=ae09a6a1796a4587 Pesquisa de satisfação Café Debug 2024 https://docs.google.com/forms/d/e/1FAIpQLSdlkPGS-sqfD3QOmkddRDqj7dlYE8mpIlZXORIfTtn-MztKKA/viewform https://itforum.com.br/aplicacoes-legadas-um-problema-dificil-de-lidar/amp/ https://www.devmedia.com.br/introducao-a-refatoracao/21377 https://www.infoq.com/br/articles/refactoring-legacy-applications/ https://whatfix.com/blog/legacy-application-modernization/ Participantes Jéssica Nathany (Software Developer e host)LinkedIn: https://www.linkedin.com/in/jessica-nathany-carvalho-freitas-38260868/Weslley Fratini (Software Developer e co-host)LinkedIn: https://www.linkedin.com/in/weslley-fratini/ Tiago Aguiar (Senior Developer na InfoJobs)LinkedIn: https://www.linkedin.com/in/tiago-aguiar/Canal Youtube: https://www.youtube.com/@AguiarDev91 Daniel Jesus(Engineer Manager na XP Investimentos)LinkedIn: https://www.linkedin.com/in/djesusnet/Canal Youtube: https://www.youtube.com/@DjesusNet Produtora AGO Filmes: https://thiagocarvalhofotografia.wordpress.com/dúvidas, sugestões ou anúncios envie para: debugcafe@gmail.comSee omnystudio.com/listener for privacy information.

Alex affronta le sfide e frustrazioni nello sviluppo della sua applicazione, evidenziando la difficoltà a trovare soluzioni definitive.Mostra insicurezza e ammette di navigare nel buio, riferendosi ai continui errori e valutazioni sbagliate durante il proceso.Racconta di aver finalmente trovato una configurazione ottimale usando quattro core per il suo software, dopo numerosi test su diverse piattaforme di storage.Nonostante queste scoperte, rimane consapevole delle sue incertezze, riflettendo sulle difficoltà incontrate e sul suo percorso di miglioramento.Inoltre, condivide aneddoti personali e pensieri su possibili funzionalità future, come la trascrizione audio, pur riconoscendo la complessità e i potenziali costi aggiuntivi.Alex sperimenta momenti di esitazione ma persiste, cercando di ottimizzare il suo lavoro nonostante le sfide.[00:03:24] Spot[00:12:26] Spot[00:17:37] Spot[00:27:34] Spot[00:30:56] Il riassunto di Sciatta GPTTechnoPillzFlusso di coscienza digitale.Vieni a chiacchierare sul riot:https://t.me/TechnoPillzRiotSono su Mastodon: @shylock74@mastodon.unoI video di The Morning Rant sul canale YouTube di Runtime:https://www.youtube.com/playlist?list=PLgGSK_Rq9Xdh1ojZ_Qi-rCwwae_n2LmztAscoltaci live tutti i giorni 24/7 su: http://runtimeradio.itScarica l'app per iOS: https://bit.ly/runtAppContribuisci alla Causa andando su:http://runtimeradio.it/ancheio/

Les repas en famille, c'est tout un programme !  Entre les vieux conflits qui remontent, les tensions avec la belle-mère et les débats avec l'oncle raciste (le fameux !), on se demande souvent ce qu'on fait là

“Soit tu trouves des excuses, soit tu trouves des solutions”

Programmare non è solo mettere insieme delle righe di codice. Anzi, è molto più complicato di così. La vera sfida comincia quando le cose non vanno come i programmatori hanno previsto. Non basta assicurarsi che il programma funzioni nei casi più comuni; è durante gli imprevisti che un programmatore deve dimostrare il suo valore. I bug, quelle maledette imperfezioni, sono proprio ciò che rende questo un lavoro tosto.Tutti i miei link: https://linktr.ee/br1brownTELEGRAM - INSTAGRAMSe ti va supportami https://it.tipeee.com/br1brown

Picking a compiler for debuggability, how to port Rust apps to FreeBSD, what the point of Docker is on FreeBSD/Solaris, another EuroBSDcon recap, and network manager control in OpenBSD This episode was brought to you by Headlines Compile once, Debug twice: Picking a compiler for debuggability, part 1 of 3 (https://backtrace.io/blog/compile-once-debug-twice-picking-a-compiler-for-debuggability-1of3/) An interesting look into why when you try to debug a crash, you can often find all of the useful information has been ‘optimized out' Have you ever had an assert get triggered only to result in a useless core dump with missing variable information or an invalid callstack? Common factors that go into selecting a C or C++ compiler are: availability, correctness, compilation speed and application performance. A factor that is often neglected is debug information quality, which symbolic debuggers use to reconcile application executable state to the source-code form that is familiar to most software engineers. When production builds of an application fail, the level of access to program state directly impacts the ability for a software engineer to investigate and fix a bug. If a compiler has optimized out a variable or is unable to express to a symbolic debugger how to reconstruct the value of a variable, the engineer's investigation process is significantly impacted. Either the engineer has to attempt to recreate the problem, iterate through speculative fixes or attempt to perform prohibitively expensive debugging, such as reconstructing program state through executable code analysis. Debug information quality is in fact not proportionally related to the quality of the generated executable code and wildly varies from compiler to compiler. Different compilers emit debug information at varying levels of quality and accuracy. However, certain optimizations will certainly impact any debugger's ability to generate accurate stack traces or extract variable values. In the above program, the value of argv is extracted and then the program is paused. The ckprloadptr function performs a read from the region of memory pointed to by argv, in a manner that prevents the compiler from performing optimization on it. This ensures that the memory access occurs and for this reason, the value of argv must be accessible by the time ckprloadptr is executed. When compiled with gcc, the debugger fails to find the value of the variable. The compiler determines that the value of argv is no longer needed after the ckprload_ptr operation and so doesn't bother paying the cost of saving the value. Some optimizations generate executable code whose call stack cannot be sufficiently disambiguated to reconcile a call stack that mirrors that of the source program. Two common culprits for this are tail call optimization and basic block commoning. In another example If the program receives a first argument of 1, then function is called with the argument of "a". If the program receives a first argument of 2, then function is called with the argument of "b". However, if we compile this program with clang, the stack traces in both cases are identical! clang informs the debugger that the function f invoked the function("b") branch where x = 2 even if x = 1. Though some optimizations will certainly impact the accuracy of a symbolic debugger, some compilers simply lack the ability to generate debug information in the presence of certain optimizations. One common optimization is induction variable elimination. A variable that's incremented or decremented by a constant on every iteration of a loop or derived from another variable that follows this pattern, is an induction variable. Coupled with other optimizations, the compiler is then able to generate code that doesn't actually rely on a dedicated counter variable “i” for maintaining the current offset into “buffer”. As you can see, i is completely optimized out. The compiler determines it doesn't have to pay the cost of maintaining the induction variable i. It maintains the pointer in the register %rdi. The code is effectively rewritten to something closer to this: So the for loop, changes into a while loop, with a condition of the end of the input We have shown some common optimizations that may get in the way of the debuggability of your application and demonstrated a disparity in debug information quality across two popular compilers. In the next blog post of this series, we will examine how gcc and clang stack up with regards to debug information quality across a myriad of synthetic applications and real world applications. Looking forward to part 2 *** This is how you can port your rust application to FreeBSD (https://medium.com/@andoriyu/this-is-how-you-can-port-your-rust-application-to-freebsd-7d3e9f1bc3df) This is how you can port your rust application to FreeBSD The FreeBSD Ports Collection is the way almost everyone installs applications (“ports”) on FreeBSD. Like everything else about FreeBSD, it is primarily a volunteer effort. It is important to keep this in mind when reading this document. In FreeBSD, anyone may submit a new port, or volunteer to maintain an existing unmaintained port. No special commit privilege is needed. For this guide I will use fd tool written by David Peter as example project. Prerequisites FreeBSD installation (VM is fine) Local ports tree (done via svn) portlint (located at devel/portlint) poudriere (located at ports-mgmt/poudriere)[optional] Getting ports tree When you install FreeBSD opt-out of the ports tree. Install svn: pkg install svn svn checkout https://svn.freebsd.org/ports/head /usr/ports Poudriere Sometimes you might get asked to show poudriere build log, sometimes you won't. It's good to have anyway. If you choose to use poudriere, use ZFS. There are plenty of guides on the subject. FreeBSD Porter's Handbook is the most complete source of information on porting to FreeBSD. Makefile Whole porting process in most cases is writing one Makefile. I recommend doing something like this. Here is the one I wrote for fd: Port metadata Each port must have one primary category in case of fd it will be sysutils, therefore it's located in /usr/ports/systuils/fd. PORTNAME= fd CATEGORIES= sysutils Since this port conflicts with other util named fd I specified package suffix as: PKGNAMESUFFIX= -find and indicate conflict: CONFLICTS_INSTALL= fd-[0-9]*. That means to install it from packages user will have to type: pkg install fd-find Licenses This section is different for every port, but in case of fd it's pretty straightforward: LICENSE= MIT APACHE20 LICENSE_COMB= dual Since fd includes the text of licenses you should do this as well: LICENSE_FILE_MIT= ${WRKSRC}/LICENSE-MIT LICENSE_FILE_APACHE20= ${WRKSRC}/LICENSE-APACHE Distfiles FreeBSD has a requirement that all ports must allow offline building. That means you have specified which files are needed to be downloaded. Luckily we now have helpers to download GitHub sources directly from GitHub: USE_GITHUB= yes GH_ACCOUNT= sharkdp Since PORTNANE is fd it will try to download sources for sharkdp/fd. By default it's going to download tag: ${DISTVERSIONPREFIX}${DISTVERSION}${DISTVERSIONSUFFIX} fd uses v as the prefix, therefore we need to specify: DISTVERSIONPREFIX= v. It's also possible to specify GH_TAGNAME in case tag name doesn't match that pattern. Extra packages There are very few rust projects that are standalone and use no crates dependencies. It's used to be PITA to make it work offline, but now cargo is a first class citizen in ports: USES= cargo CARGO_CRATES= aho-corasick-0.6.3 atty-0.2.3 # and so goes on Yes, you have to specify each dependency. Luckily, there is a magic awk script that turns Cargo.lock into what you need. Execute make cargo-crates in the port root. This will fail because you're missing checksum for the original source files: make makesum make cargo-crates This will give you what you need. Double check that result is correct. There is a way to ignore checksum error, but I can't remember… Execute make makesum again. CARGO_OUT If. build.rs relies on that you have to change it. fd allows you to use SHELLCOMPLETIONSDIR to specify where completions go, while ripgrep doesn't. In our case we just specify SHELLCOMPLETIONSDIR: SHELL_COMPLETIONS_DIR= ${WRKDIR}/shell-completions-dir CARGO_ENV= SHELL_COMPLETIONS_DIR=${SHELL_COMPLETIONS_DIR} PLIST FreeBSD is very strict about files it's installing and it won't allow you to install random files that get lost. You have to specify which files you're installing. In this case, it's just two: PLIST_FILES= bin/fd man/man1/fd.1.gz Note that sources for fd have uncompressed man file, while here it's listed as compressed. If port installs a lot of files, specify them in pkg-plist like here. To actually install them: post-install: @${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/fd ${INSTALL_MAN}${WRKSRC}/doc/fd.1 ${STAGEDIR}${MAN1PREFIX}/man/man1 Shell completions clap-rs can generate shell completions for you, it's usually handled by build.rs script. First, we need to define options: OPTIONS_DEFINE= BASH FISH ZSH # list options OPTIONS_DEFAULT= BASH FISH ZSH # select them by default BASH_PLIST_FILES= etc/bash_completion.d/fd.bash-completion FISH_PLIST_FILES= share/fish/completions/fd.fish ZSH_PLIST_FILES= share/zsh/site-functions/_fd To actually install them: post-install-BASH-on: @${MKDIR} ${STAGEDIR}${PREFIX}/etc/bash_completion.d ${INSTALL_DATA} ${SHELL_COMPLETIONS_DIR}/fd.bash-completion ${STAGEDIR}${PREFIX}/etc/bash_completion.d post-install-FISH-on: @${MKDIR} ${STAGEDIR}${PREFIX}/share/fish/completions ${INSTALL_DATA} ${SHELL_COMPLETIONS_DIR}/fd.fish ${STAGEDIR}${PREFIX}/share/fish/completions post-install-ZSH-on: @${MKDIR} ${STAGEDIR}${PREFIX}/share/zsh/site-functions ${INSTALL_DATA} ${SHELL_COMPLETIONS_DIR}/_fd ${STAGEDIR}${PREFIX}/share/zsh/site-functions Bonus round - Patching source code Sometimes you have to patch it and send the patch upstream. Merging it upstream can take awhile, so you can patch it as part of the install process. An easy way to do it: Go to work/ dir Copy file you want to patch and add .orig suffix to it Edit file you want to patch Execute make makepatch in port's root Submitting port First, make sure portlint -AC doesn't give you any errors or warnings. Second, make sure poudriere can build it on both amd64 and i386. If it can't?—?you have to either fix it or mark port broken for that arch. Follow this steps like I did steps. If you have any issues you can always ask your question in freebsd-ports on freenode try to find your answer in porter's handbook before asking. Conference Recap: EuroBSDCon 2017 Recap (https://www.freebsdfoundation.org/blog/conference-recap-eurobsdcon-2017-recap/) The location was wonderful and I loved sneaking out and exploring the city when I could. From what I heard, it was the largest BSD conference in history, with over 320 attendees! Each venue is unique and draws many local BSD enthusiasts, who normally wouldn't be able to travel to a conference. I love having the chance to talk to these people about how they are involved in the projects and what they would like to do. Most of the time, they are asking me questions about how they can get more involved and how we can help. Magical is how I would describe the conference social event. To stand in front of the dinner cruise on the Seine, with the Eiffel Tower standing tall, lit up in the night, while working – talking to our community members, was incredible. But, let me start at the beginning. We attend these conferences to talk to our community members, to find out what they are working on, determine technologies that should be supported in FreeBSD, and what we can do to help and improve FreeBSD. We started the week with a half-day board meeting on Wednesday. BSD conferences give us a chance to not only meet with community members around the world, but to have face-to-face meetings with our team members, who are also located around the world. We worked on refining our strategic direction and goals, determining what upcoming conferences we want FreeBSD presence at and who can give FreeBSD talks and workshops there, discussed current and potential software development projects, and discussed how we can help raise awareness about and increase the use of FreeBSD in Europe. Thursday was the first day of the FreeBSD developer summit, led by our very own Benedict Reuschling. He surprised us all by having us participate in a very clever quiz on France. 45 of us signed into the software, where he'd show the question on the screen and we had a limited amount of time to select our answers, with the results listed on the screen. It was actually a lot of fun, especially since they didn't publicize the names of the people who got the questions wrong. The lucky or most knowledgeable person on France, was des@freebsd.org. Some of our board members ran tutorials in parallel to the summit. Kirk McKusick gave his legendary tutorial, An Introduction to the FreeBSD Open-Source Operating System , George Neville-Neil gave his tutorial, DTrace for Developers, and Benedict Reuschling gave a tutorial on, Managing BSD systems with Ansible. I was pleased to have two chairs from ACM-W Europe run an “Increasing Diversity in the BSDs” BoF for the second year in a row. We broke up into three groups to discuss different gender bias situations, and what we can do to address these types of situations, to make the BSD projects more diverse, welcoming, and inclusive. At the end, people asked that we continue these discussions at future BSD conferences and suggested having an expert in the field give a talk on how to increase the diversity in our projects. As I mentioned earlier, the social dinner was on a boat cruising along the Seine. I had a chance to talk to community members in a more social environment. With the conference being in France, we had a lot of first time attendees from France. I enjoyed talking to many of them, as well as other people I only get to see at the European conferences. Sunday was full of more presentations and conversations. During the closing session, I gave a short talk on the Foundation and the work we are doing. Then, Benedict Reuschling, Board Vice President, came up and gave out recognition awards to four FreeBSD contributors who have made an impact on the Project. News Roundup Playing with the pine64 (https://chown.me/blog/playing-with-the-pine64.html) Daniel Jakots writes in his blog about his experiences with his two pine64 boards: Finding something to install on it 6 weeks ago, I ordered two pine64 units. I didn't (and still don't) have much plan for them, but I wanted to play with some cheap boards. I finally received them this week. Initially I wanted to install some Linux stuff on it, I didn't have much requirement so I thought I would just look what seems to be easy and/or the best supported systemd flavour. I headed over their wiki. Everything seems either not really maintained, done by some random people or both. I am not saying random people do bad things, just that installing some random things from the Internet is not really my cup of tea. I heard about Armbian (https://www.armbian.com/pine64/) but the server flavour seems to be experimental so I got scared of it. And sadly, the whole things looks like to be alot undermanned. So I went for OpenBSD because I know the stuff and who to har^Wkindly ask for help. Spoiler alert, it's boring because it just works. Getting OpenBSD on it I downloaded miniroot62.fs, dd'ed it on the micro SD card. I was afraid I'd need to fiddle with some things like sysutils/dtb because I don't know what I would have needed to do. That's because I don't know what it does and for this precise reason I was wrong and I didn't need to do anything. So just dd the miniroot62.fs and you can go to next checkpoint. I plugged an HDMI cable, ethernet cable and the power, it booted, I could read for 10 seconds but then it got dark. Of course it's because you need a serial console. Of course I didn't have one. I thought about trying to install OpenBSD blindly, I could have probably succeeded with autoinstall buuuuuut… Following some good pieces of advice from OpenBSD people I bought some cp2102 (I didn't try to understand what it was or what were the other possibilities, I just wanted something that would work :D). I looked how to plug the thing. It appears you can plug it on two different places but if you plug it on the Euler bus it could power a bit the board so if you try to reboot it, it would then mess with the power disruption and could lead a unclean reboot. You just need to plug three cables: GND, TXD and RXD. Of course, the TXD goes on the RXD pin from the picture and the RXD goes on the TXD pin. Guess why I'm telling you that! That's it Then you can connect with the usual $ cu -dl /dev/cuaU0 -s 115200 What's the point of Docker on FreeBSD or Solaris? (http://blog.frankleonhardt.com/2017/whats-the-point-of-docker-on-freebsd-or-solaris/) Penguinisters are very keen on their docker, but for the rest of us it may be difficult to see what the fuss is all about – it's only been around a few years and everyone's talking about it. And someone asked again today. What are we missing? Well docker is a solution to a Linux (and Windows) problem that FreeBSD/Solaris doesn't have. Until recently, the Linux kernel only implemented the original user isolation model involving chroot. More recent kernels have had Control Groups added, which are intended to provide isolation for a group of processes (namespaces). This came out of Google, and they've extended to concept to include processor resource allocation as one of the knobs, which could be a good idea for FreeBSD. The scheduler is aware of the JID of the process it's about to schedule, and I might take a look in the forthcoming winter evenings. But I digress. So if isolation (containerisation in Linux terms) is in the Linux kernel, what is Docker bringing to the party? The only thing I can think of is standardisation and an easy user interface (at the expense of having Python installed). You might think of it in similar terms to ezjail – a complex system intended to do something that is otherwise very simple. To make a jail in FreeBSD all you need do is copy the files for your system to a directory. This can even be a whole server's system disk if you like, and jails can run inside jails. You then create a very simple config file, giving the jail a name, the path to your files and an what IP addresses to pass through (if any) and you're done. Just type “service jail nameofjal start”, and off it goes. Is there any advantage in running Docker? Well, in a way, there is. Docker has a repository of system images that you can just install and run, and this is what a lot of people want. They're a bit like virtual appliances, but not mind-numbingly inefficient. You can actually run docker on FreeBSD. A port was done a couple of years ago, but it relies on the 64-bit Linux emulation that started to appear in 10.x. The newer the version of FreeBSD the better. Docker is in ports/sysutils/docker-freebsd. It makes uses of jails instead of Linux cgroups, and requires ZFS rather than UFS for file system isolation. I believe the Linux version uses Union FS but I could be completely wrong on that. The FreeBSD port works with the Docker hub repository, giving you access to thousands of pre-packaged system images to play with. And that's about as far as I've ever tested it. If you want to run the really tricky stuff (like Windows) you probably want full hardware emulation and something like Xen. If you want to deploy or migrate FreeBSD or Solaris systems, just copy a new tarball in to the directory and go. It's a non-problem, so why make it more complicated? Given the increasing frequency Docker turns up in conversations, it's probably worth taking seriously as Linux applications get packaged up in to images for easy access. Jails/Zones may be more efficient, and Docker images are limited to binary, but convenience tends to win in many environments. Network Manager Control for OpenBSD (http://www.vincentdelft.be/post/post_20171023) I propose you a small script allowing you to easily manage your networks connections. This script is integrated within the openbox dynamic menus. Moreover, it allow you to automatically have the connections you have pre-defined based. I was frustrated to not be able to swap quickly from one network interface to an another, to connect simply and quickly to my wifi, to my cable connection, to the wifi of a friend, ... Every time you have to type the ifconfig commands, .... This is nice, but boring. Surely, when you are in a middle of a presentation and you just want a quick connection to your mobile in tethering mode. Thanks to OpenBSD those commands are not so hard, but this frustrate me to not be able to do it with one click. Directly from my windows environment. Since I'm using Openbox, from a menu of openbox. So, I've looked around to see what is currently existing. One tool I've found was netctl (https://github.com/akpoff/netctl). The idea is to have a repository of hostname.if files ready to use for different cases. The idea sounds great, but I had some difficulties to use it. But what annoys me the most, is that it modify the current hostname.if files in /etc. To my eyes, I would avoid to modify those files because they are my working basis. I want to rely on them and make sure that my network will be back to a normal mode after a reboot. Nevertheless, if I've well understood netctl, you have a feature where it will look for the predefined network config matching the environment where you are. Very cool. So, after having played with netctl, look for alternative on internet, I've decided to create nmctl. A small python script which just perform the mandatory network commands. 1. nmctl: a Network Manager Control tool for OpenBSD Nmctl a small tool that allow you to manage your network connections. Why python ? Just because it's the easiest programming language for me. But I should maybe rewrite it in shell, more standard in the OpenBSD world than python. 1.1. download and install I've put nmctl on my sourceforge account here (https://sourceforge.net/p/nmctl/code/ci/master/tree/) You can dowload the last version here (https://sourceforge.net/p/nmctl/code/ci/master/tarball) To install you just have to run: make install (as root) The per-requists are: - having python2.7 installed - Since nmctl must be run as root, I strongly recommend you to run it via doas (http://man.openbsd.org/doas.conf.5). 1.2. The config file First you have to create a config and store it in /etc/nmctl.conf. This file must respect few rules: Each block must starts with a line having the following format: ''':''' Each following lines must start by at least one space. Those lines have more or less the same format as for hostname.if. You have to create a block with the name "open". This will be used to establish a connection to the Open Wifi around you (in restaurant for example) The order of those elements is important. In case you use the -restart option, nmctl will try each of those network configs one after one until it can ping www.google.com. (if you wan to ping something else, you can change it in the python script if you want). You can use external commands. Just preced them with the "!". You have macors. Macros allow you to perform some actions. The 2 currently implemented are '''''' and ''''''. You can use keywords. Currently the only one implemented is "dhcp" Basically you can put all commands that nmctl will apply to the interface to which those commands are referring to. So, you will always have "ifconfig ". Check the manpage of ifconfig to see how flexible command is. You have currently 2 macros: - which refers to the "nwid " when you select an Open Wifi with the -open option of nmctl. - is a macro generating a random mac address. This is useful test a dhcp server for example. The keyword "dhcp" will trigger a command like "dhclient ". 1.3. Config file sample. Let me show you one nmctl.conf example. It speaks by itself. ``` # the name open is required for Open wifi. # this is the interface that nmctl will take to establish a connection # We must put the macro . This is where nmctl will put the nwid command # and the selected openwifi selected by the parameter --open open:iwn0 !route flush -wpa dhcp cable:em0 !route flush dhcp lgg4:iwn0 !route flush nwid LGG4s_8114 wpakey aanotherpassword dhcp home:iwn0 !route flush nwid Linksys19594 wpakey apassword dhcp college:iwn0 !route flush nwid john wpakey haahaaaguessme dhcp cable_fixip:em0 !route flush inet 192.168.3.3 netmask 255.255.255.0 !route add -host default 192.168.3.1 # with this network interface I'm using the macro # which will do what you guess it will do :-) cable_random:em0 !route flush lladdr dhcp ``` In this config we have several cable's networks associated with my interface "em0" and several wifi networks associated with my wireless interface "iwn0". You see that you can switch from dhcp, to fixed IP and even you can play with the random mac address macro. Thanks to the network called "open", you can connect to any open wifi system. To do that, just type ''' nmctl --open ''' So, now, with just one command you can switch from one network configuration to an another one. That's become cool :-). 2. Integration with openbox Thanks to the dynamic menu feature of oenbox[sic], you can have your different pre-defined networks under one click of your mouse. For that, you just have to add, at the most appropriate place for you, the following code in your ./config/openbox/menu.xml In this case, you see the different networks as defined in the config file just above. 3. Automatically identify your available connection and connect to it in one go But the most interesting part, is coming from a loop through all of your defined networks. This loop is reachable via the -restart option. Basically the idea is to loop from the first network config to the last and test a ping for each of them. Once the ping works, we break the loop and keep this setting. Thus where ever you are, you just have to initiate a nmctl -restart and you will be connected to the network you have defined for this place. There is one small exception, the open-wifis. We do not include them in this loop exercise. Thus the way you define your config file is important. Since the network called "open" is dedicated to "open wifi", it will not be part of this scan exercise. I propose you keep it at the first place. Then, in my case, if my mobile, called lgg4, is open and visible by my laptop, I will connect it immediately. Second, I check if my "home wifi" is visible. Third, if I have a cable connected on my laptop, I'm using this connection and do a dhcp command. Then, I check to see if my laptop is not viewing the "college" wifi. ? and so on until a ping command works. If you do not have a cable in your laptop and if none of your pre-defined wifi connections are visible, the scan will stop. 3.1 examples No cable connected, no pre-defined wifi around me: t420:~$ time doas nmctl -r nwids around you: bbox2-d954 0m02.97s real 0m00.08s user 0m00.11s system t420:~$ t420:~$ I'm at home and my wifi router is running: ``` t420:~$ time doas nmctl -r nwids around you: Linksys19594 bbox2-d954 ifconfig em0 down: 0 default fw done fw 00:22:4d:ac:30:fd done nas link#2 done route flush: 0 ifconfig iwn0 nwid Linksys19594 ...: 0 iwn0: no link ........... sleeping dhclient iwn0: 0 Done. PING www.google.com (216.58.212.164): 56 data bytes 64 bytes from 216.58.212.164: icmp_seq=0 ttl=52 time=12.758 ms --- www.google.com ping statistics --- 1 packets transmitted, 1 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 12.758/12.758/12.758/0.000 ms ping -c1 -w2 www.google.com: 0 0m22.49s real 0m00.08s user 0m00.11s system t420:~$ ``` I'm at home but tethering is active on my mobile: ``` t420:~$ t420:~$ time doas nmctl -r nwids around you: Linksys19594 bbox2-d954 LGG4s8114 ifconfig em0 down: 0 default fw done fw 00:22:4d:ac:30:fd done nas link#2 done route flush: 0 ifconfig iwn0 nwid LGG4s8114 ...: 0 iwn0: DHCPDISCOVER - interval 1 iwn0: DHCPDISCOVER - interval 2 iwn0: DHCPOFFER from 192.168.43.1 (a0:91:69:be:10:49) iwn0: DHCPREQUEST to 255.255.255.255 iwn0: DHCPACK from 192.168.43.1 (a0:91:69:be:10:49) iwn0: bound to 192.168.43.214 -- renewal in 1800 seconds dhclient iwn0: 0 Done. ping: Warning: www.google.com has multiple addresses; using 173.194.69.99 PING www.google.com (173.194.69.99): 56 data bytes 64 bytes from 173.194.69.99: icmp_seq=0 ttl=43 time=42.863 ms --- www.google.com ping statistics --- 1 packets transmitted, 1 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 42.863/42.863/42.863/0.000 ms ping -c1 -w2 www.google.com: 0 0m13.78s real 0m00.08s user 0m00.13s system t420:~$ ``` Same situation, but I cut the tethering just after the scan. Thus the dhcp command will not succeed. We see that, after timeouts, nmctl see that the ping is failing (return code 1), thus he pass to the next possible pre-defined network. ``` t420:~$ time doas nmctl -r nwids around you: Linksys19594 bbox2-d954 LGG4s8114 ifconfig em0 down: 0 default 192.168.43.1 done 192.168.43.1 a0:91:69:be:10:49 done route flush: 0 ifconfig iwn0 nwid LGG4s8114 ...: 0 iwn0: no link ........... sleeping dhclient iwn0: 0 Done. ping: no address associated with name ping -c1 -w2 www.google.com: 1 ifconfig em0 down: 0 192.168.43.1 link#2 done route flush: 0 ifconfig iwn0 nwid Linksys19594 ...: 0 iwn0: DHCPREQUEST to 255.255.255.255 iwn0: DHCPACK from 192.168.3.1 (00:22:4d:ac:30:fd) iwn0: bound to 192.168.3.16 -- renewal in 302400 seconds dhclient iwn0: 0 Done. PING www.google.com (216.58.212.164): 56 data bytes 64 bytes from 216.58.212.164: icmp_seq=0 ttl=52 time=12.654 ms --- www.google.com ping statistics --- 1 packets transmitted, 1 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 12.654/12.654/12.654/0.000 ms ping -c1 -w2 www.google.com: 0 3m34.85s real 0m00.17s user 0m00.20s system t420:~$ ``` OpenVPN Setup Guide for FreeBSD (https://www.c0ffee.net/blog/openvpn-guide) OpenVPN Setup Guide Browse securely from anywhere using a personal VPN with OpenVPN, LDAP, FreeBSD, and PF. A VPN allows you to securely extend a private network over the internet via tunneling protocols and traffic encryption. For most people, a VPN offers two primary features: (1) the ability to access services on your local network over the internet, and (2) secure internet connectivity over an untrusted network. In this guide, I'll describe how to set up a personal VPN using OpenVPN on FreeBSD. The configuration can use both SSL certificates and LDAP credentials for authentication. We'll also be using the PF firewall to NAT traffic from our VPN out to the internet. One important note about running your own VPN: since you are most likely hosting your server using a VPS or hosting provider, with a public IP address allocated specifically to you, your VPN will not give you any extra anonymity on the internet. If anything, you'll be making yourself more of a target, since all your activity can be trivially traced back to your server's IP address. So while your VPN will protect you from a snooping hacker on the free WiFi at Starbucks, it won't protect you from a federal investigation. This guide assumes you are running FreeBSD with the PF firewall. If you're using a different Unix flavor, I'll probably get you most of the way there—but you'll be on your own when configuring your firewall and networking. Finally, I've used example.com and a non-routable public IP address for all the examples in this guide. You'll need to replace them with your own domain name and public IP address. Beastie Bits BSDCan 2017 videos (https://www.youtube.com/channel/UCuQhwHMJ0yK2zlfyRr1XZ_Q/feed) Getting started with OpenBSD device driver development PDF (https://www.openbsd.org/papers/eurobsdcon2017-device-drivers.pdf) AWS CloudWatch Logs agent for FreeBSD (https://macfoo.wordpress.com/2017/10/27/aws-cloudwatch-logs-agent-for-freebsd/) FreeBSD Foundation November 2017 Development Projects Update (https://www.freebsdfoundation.org/blog/november-2017-development-projects-update/) Schedule for the BSD Devroom at FOSDEM 2018 (https://fosdem.org/2018/schedule/track/bsd/) *** Feedback/Questions Matt - The show and Cantrill (http://dpaste.com/35VNXR5#wrap) Paulo - FreeBSD Question (http://dpaste.com/17E9Z2W#wrap) Steven - Virtualization under FreeBSD (http://dpaste.com/1N6F0TC#wrap) ***

Üsküdar Üniversitesi'nde gerçekleşen Bilimler Işığında Yaratılış Kongresi'nde kaleme alınan Yaratılış manifestosunu inceliyoruz.