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  • #56 Building Green Software, the one year anniversary with Sarah Hsu

    #56 Building Green Software, the one year anniversary with Sarah Hsu
    2025/04/08
    A year ago, Building Green Software was released by O’Reilly. Since Tim Frick’s book “Designing for sustainability” (8 years ago!), O’Reilly didn’t publish anything fully focusing on sustainability. So, it’s a fair statement that this book was long awaited. But a year is an eternity in IT. This is why Sarah Hsu, one of its 3 co-authors as well as the chair of the Green Software Foundation’s Principles of Green Software committee, joined the show to talk about the trends she witnesses first hand in the green software engineering field and how she would envision a v2. More specifically she talked about: 🌟 GreenOps being the new kid in the block 👨‍🏫 What FinOps can teach to GreenOps 📈 How SRE can help treating environmental metrics like any other business metrics 🕵️‍♀️ The hard truth about the four nine 📏 Progress made in measurement 🔬 What the Rumsfeld’s Metrics can tell us about the difference between monitoring and observability 🚧 Why it should always be space and time for deviation And much more! ❤️ Subscribe, follow, like, ... stay connected the way you want to never miss an episode, twice a month, on Tuesday! All the references, the link to get free tickets, the wrap-up article and the full transcript is on Green IO website here: https://greenio.tech/blog
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    49 分
  • #55 Decarbonizing Kubernetes with Flavia Paganelli and Niki Manoledaki

    #55 Decarbonizing Kubernetes with Flavia Paganelli and Niki Manoledaki
    2025/03/25
    Did containerization ship away our environmental responsibility? Containers come with the promise of automation, scalability and reliability. The question is how to add sustainability to the list without breaking its other benefits. To talk about these challenges, Gaël Duez welcomes Flavia Paganelli and Niki Manoledaki, 2 experts in Kubernetes who are also pillars of the CNCF TAG Environmental Sustainability workgroup. This episode might beat the record of acronyms: KEIT, CNCF, TAG … And yet Flavia Paganelli and Niki Manoledaki provided crystal clear explanations when they covered: 🍳 Why Kubernetes is a lot like a restaurant, ⛈️ The challenges with sustainability in cloud computing, 🛠️ The CNCF KEIT project, 🌱 CNCF’s reorg and what might happen to the TAG Environmental Sustainability, 💪 The power of open source communities, And much more! ❤️ Subscribe, follow, like, ... stay connected the way you want to never miss an episode, twice a month, on Tuesday! 📧 Once a month, you get carefully curated news on digital sustainability packed with exclusive Green IO contents, subscribe to the Green IO newsletter here. 📣 Green IO Singapore is on April 6th and our next stop is in New York on May 15th. Every Green IO listener can get a free ticket using the voucher GREENIOVIP. A small gift for your huge support. 🎁
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    45 分
  • # 54 Agility and Sustainability with Joanna Masraff and Joanne Stone

    # 54 Agility and Sustainability with Joanna Masraff and Joanne Stone
    2025/03/13
    "We are 100% convinced that IT sustainability matters but we can’t add more non business requirements, we have agile teams." This often heard sentence from product managers or CPOs, led to this dedicated episode on agility and sustainability where host Gaël Duez welcomes 2 seasoned agile coaches: Joanne Stone, the founder of Agilist 4 planet and the We Hope Magazine, and Joanna Masraff, co-organiser of the the Agilists4Sustainability meetup group, and the Agilists4Planet conference. In this interview, filled with positive energy, they covered: 🛠️ Sustainability twisted technics, 🏃 Urgency vs sustainable pace of transformation, 🎯 Objectives or Key Results when incorporating Sustainability into OKR framework, 🎬 How to kick start sustainability transformation, 🔥 The importance of passionate people and influencers, 🧙 Agile coaches as alchemists of change.
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    49 分
  • #53 Scaling GreenOps at Back Market with Dawn Baker

    #53 Scaling GreenOps at Back Market with Dawn Baker
    2025/02/25
    Changing its Cloud provider is never small potatoes, especially when a platform operates up to 40,000 containers and has about 4 million unique visitors a day to its website. Yet Back Market made the move from AWS to Google Cloud Platform motivated primarily by … sustainability concerns! In this episode its CTO, Dawn Backer, chats with Gaël Duez and covers a wide range of GreenOps topics such as: ☁️ Why they switched from AWs to GCP 📏 The needed granularity in carbon measurement 💸 Why FinOps is a no brainer to boost sustainability 🏦 The importance of carbon P&L in decision making ⚖️ The Dilemma of running GreenOps between carbon reduction and faster cloud instances And much more! ❤️ Subscribe, follow, like, ... stay connected the way you want to never miss an episode, twice a month, on Tuesday! 📧 Once a month, you get carefully curated news on digital sustainability packed with exclusive Green IO contents, subscribe to the Green IO newsletter here. 📣 Green IO Singapore is on April 6th and our next stop is in New York on May 15th. Every Green IO listener can get a free ticket using the voucher GREENIOVIP. A small gift for your huge support. 🎁
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    37 分
  • #52 Sustainability at WordPress: an update with Csaba Varszegi, Nahuai Badiola, and Nora Ferreiros

    #52 Sustainability at WordPress: an update with Csaba Varszegi, Nahuai Badiola, and Nora Ferreiros
    2025/02/11
    “Today I learned that we have a sustainability team.Thank you for your effort in this area, looking at results of the team so far, and the ROI of time invested, it's probably a good time to officially dissolve the team entirely”. In 3 sentences, almost 3 years of work from the WordPress Sustainability Group vanished and their Slack channel archived on the spot. To get clarity on what happened at WordPress and to understand what a WordPress practitioner can do to reduce the environmental footprint of her digital services, Gaël Duez welcomes 3 of the 4 founders of the original sustainability team: Csaba Varszegi, Nahuai Badiola, and Nora Ferreiros. In their much more nuanced exchange that could have been expected due to the current situation, they covered many topics including: 👏 The power of applause to kick start a sustainability team 🔧 How changing HTTPS check made WordPress save 471 kWh / month 🌱 The importance of having sustainability tools as close as possible to software practitioners tools 🏛️ The subtle art of creating a foundation while keeping control over it via intellectual property 🎁 How to “enforce” contribution in an open source community And much more!
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    48 分
  • #51 Exploring the digital revolution paradox from a UN perspective with Paz Pena and Pablo José Gamez Cersosimo

    #51 Exploring the digital revolution paradox from a UN perspective with Paz Pena and Pablo José Gamez Cersosimo
    2025/01/30
    It’s a 252 pages report with the foreword of António Guterres, the Secretary-General of the United Nations, talking about digitalization and sustainability. And, for once, it’s not another report from the UN stating “let’s digitize everything to boost sustainability”. Quite the contrary as it states a “unequal ecological exchange between developed and developing countries regarding digitization”. To discuss this “scientific report based on an ethical approach” as he described it, we welcome one of its contributors, Pablo José Gamez Cersosimo, based in the Netherlands. Another contributor, Paz Pena Ochoa, based in Chile, joined us to share her unique perspective on Latin America.
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    57 分
  • #50 Is Eroom's law the future of Moore's law? with Tristan Nitot

    #50 Is Eroom's law the future of Moore's law? with Tristan Nitot
    2024/12/03
    Moore’s law is dead! Long live Eroom’s law! This provocative statement from Tristan Nitot highlights the pivotal role of software engineers in our journey as an industry toward a sustainable and more frugal digital world. The majority of our old devices, from smartphones to desktop, still work. How come that we waste such a massive gathering of precious resources such as minerals, energy, water and even our human time which we use to manufacture and maintain them? What should we do to break the trend of electronic waste and the ever-increasing footprint of the IT sector on our physical world? Gael Duez sat down with Tristan Nitot to start answering these questions in this Green IO episode where we covered: ⚖️ Why Wirth’s law matters more than Moore’s law 🗑️ How the Auvergnat cultural aversion for waste accelerated the birth of the Eroom’s law 🔎 How to find (sustainability) weakness in your software, 🐍 Why Python is not (always) guilty of being resource hungry and how to embrace a wise use of alternative libraries such as Polars, ✨The real ROII of using AI to optimize software.
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    44 分
  • #49 How to actually do Green Software in my company? with Annie Freeman

    #49 How to actually do Green Software in my company? with Annie Freeman
    2024/11/26
    Have you ever heard “The complaint of the lonely sustainability champion”? Its IT sector version? Here it is “I listen to the Green IO podcast and others as well, I read newsletters and articles from CAT, GWF, Boavizta, Greenit.fr, GSF, etc. But I’m isolated as a green software champion. I have the feeling that I cannot achieve much by myself. How could we actually do green software in my company?” This episode is all about sharing one concrete use case of someone, Annie Freeman, who achieved to build and deploy an internal tool monitoring carbon emissions in a SaaS company, Xero, with more than 4M users of its accounting software across a dozen countries. This achievement, among others, has won her to be named a finalist in the New Zealand Sustainable Business Network Awards in 2024 And she started it all by herself when she raised her voice in 2022 at a Xero’s internal technology conference despite having joined the company as a software engineer just a few months ago. In this episode, Annie Freeman shares great insights with host Gaël Duez on: 💪 How two motivated engineers can start a movement in a 4K employees company, 🔎 Tracking the cultural change signals, 🔄 Bringing carbon awareness in existing process rather than creating new ones, 🎓🛠️ Making Community of Practices & tooling working hands in hands, 📊 How Data management primes over UI when deciding to build a carbon dashboard, 🎙️ Why listening to Green IO actually helps (not Gaël saying 😉).
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    36 分