Skip to content
HomeVideosBooksBlogs
AllTop postsTopics
Podcasts
HistoryListsWatch laterLiked videosFollowing

The videos, books, blogs and podcasts Hacker News keeps recommending, all in one place.

VideosBooksBlogsPodcastsAboutPrivacySettings

Data from Hacker News, HackerTube, HackerBooks, HackerBlogs and Open Library. Credits · Not affiliated with Y Combinator.

HomeVideosBooksBlogsPodcasts
Ctrl K

    Kyle Mitchell

    writing.kemitchell.com · Personal blog · on HN since 2014

    Kyle Mitchell, a California software licensing attorney, writes about open source licenses such as MIT, AGPL, and PolyForm.

    Visit blogRSSHN submissions
    Open Source & LinuxPrivacy & Policy
    What HN says

    HN commenters link it for plain explanations of licenses, including why MIT and BSD have shortcomings and what the AGPL does and doesn't protect.

    Stats for nerds
    134HN people shared it
    280linked in comments
    4.4Kstory points
    May 2026last shared
    2017people per year2026

    Top posts on HN

    1. 1
      The MIT License, Line by Line
      14 people · 1.1K points · first shared 2016 · 142 comments on HN
    2. 2
      Russia to legalize software piracy
      3 people · 542 points · first shared 2022 · 577 comments on HN
    3. 3
      Open Source License Business Perception Report
      3 people · 349 points · first shared 2017 · 174 comments on HN
    4. 4
      The License Zero Manifesto
      5 people · 198 points · first shared 2017 · 185 comments on HN
    5. 5
      Big Time Public License
      4 people · 154 points · first shared 2021 · 203 comments on HN
    6. 6
      Scapegoating free software’s failures
      1 person · 150 points · first shared 2019 · 118 comments on HN
    7. 7
      The Open Source Initiative Did Not Win Neo4j vs. PureThink
      3 people · 149 points · first shared 2022 · 43 comments on HN
    8. 8
      Templating for Lawyers
      1 person · 148 points · first shared 2021 · 55 comments on HN
    9. 9
      Reading the AGPL
      6 people · 129 points · first shared 2021 · 65 comments on HN
    10. 10
      The Work, the Tech, and the Crime
      1 person · 82 points · first shared 2022 · 33 comments on HN

    What HN people wrote when they linked it

    • gavinhowardAug 2023

      Those are really good thoughts! Here are a few answers and thoughts.

      * No, it won't stay AGPL. It will be just my license once a lawyer approves that license. And I have actually four licenses; it will start on the most restrictive, but I will move it to the most permissive over time as this repo becomes established and recognized. In essence, I will explicitly follow the process in [1] that tends to happen over time.

      * Yay!

      * Double yay! Thank you!

      * Yes. This is necessary to implement DSL's in it. (My build system will use a DSL.) Also, it will have better error messages.

      * Great! This is one thing that Rust is right on: mutation should not be default.

      * I'm not the biggest fan of it either; that syntax will change to something better. Maybe just `push <expr>: <stack>`. I don't know. Any suggestions?

      * Technically, they are not built-in; they are a part of the standard library, but point taken: there needs to be a better namespace for those standard library ones. (By the way, this means that yes, your own libraries can add context stacks for client code.)

      * Function suffixes are weird, yes. I don't know what to do about that. I've waffled a bit between them and having implicit name mangling (as in C++), but that leads to ABI and interoperability issues. But I acknowledge the issue. What can I say? Language design is hard!

      And to answer, your claim that you're not a language guy, you are. As a user, you are more right than me as to what is good; actual users matter…

    • s7rNov 2021

      In terms of "antithetical values", the machine learning project ml5js.org actually did something about this. They bound their open-source license to a Code of Conduct¹, which forbids the use of their ML software for (1) discriminating against marginalized communities, (2) building tools that disingenuously manipulate public opinion, (3) building tools of mass surveillance and prediction to repress the rights of people, and (4) building tools that control weapons, including tools that automate the deployment, operation, and targeting of weapons.

      Reported violations of the Code of Conduct are sent to a Steering Committee, made up of members of the community, who determine if the reported project is in violation of the Code of Conduct. If so, the Committee takes steps to remedy the situation (e.g. realigning project with the Code of Conduct, or removing ml5.js from the project) — and if no resolution is found, the project falls out of compliance with the terms of the software license.

      It's an interesting experiment.² Software is a tool to help us solve problems and reach desired outcomes. Licenses are also a tool to help us solve problems and reach desired outcomes. When desired outcomes exclude certain things (e.g. discrimination of marginalized communities, manipulation of public opinion, autonomous weapons, values antithetical to that of a community), it seems a Code of Conduct can also be a worthwhile tool to solve problems and support the outcomes that the community…

    • pointlessoneFeb 2023

      I agree that Open Source (and Free Software, so let's go with FOSS) works as designed. However, charging is not an option FOSS supports. At best it's accepting and no one's paying. OpenSSL, for instance, had accepted money for a long time yet the whole internet had to be scared for the money to actually start trickling in and still laughable amounts.

      Where I don't agree is that FOSS is not to blame. It absolutely is. FOSS is the entrenched default. And FOSS is incompatible with requiring a payment. To require a payment one has to run a tangential business (provide support, integration services, etc.) and all the options are in conflict with the quality of the main FOSS product one way or another. FOSS makes it hard to switch to any other model and it's harder the longer the project lives.

      The issue of funding is not going to be solved by FOSS because it is not the foal. We need to look past FOSS to find a solution. A good start would be to chose a different license when one starts a project. Like one of PolyForm Licenses [1] or BTPL [2]. These are not FOSS compatible but they align much better with the funding goal. And if one figures it doesn't work for the project it's easy to switch to FOSS. Much easier than the other way around, anyway.

      [1]: https://polyformproject.org/licenses/
      [2]: https://writing.kemitchell.com/2022/01/26/Big-Time-2.0.0

    • QwukeOct 2025

      Yes, that's the MongoDB variant which codifies it directly, and SF Conservancy and other legal entities promotion FOSS licenses states that the network stack contagion concern does not actually apply for the AGPL. But because AGPL doesn’t dig into the definition of "access", simply defining it as “users interacting with it remotely through a computer network”, nor define clear boundaries for how the "contagious" part of GPLv3 interacts with the rest of the network stack of this clause, it has meant that some lawyers think that a court may overly broadly interpret the definition.

      So far this contagion concern hasn't actually played out, and big corporations/hyperscalers are often using AGPL software somewhere in their stack if they're using common Linux distros - and nothing thus far has been compelled to be open sourced that isn't AGPL software.

      This might be insightful about the concerns as well as why lawyers still think it's straightforward: https://www.opencoreventures.com/blog/agpl-license-is-a-non-starter-for-most-companies

      https://discuss.logseq.com/t/on-the-agpl-license-and-the-idea-to-move-away-from-it/14716

      https://writing.kemitchell.com/2021/01/24/Reading-AGPL

      (not a lawyer): https://drewdevault.com/2020/07/27/Anti-AGPL-propaganda.html

    • kemitchellNov 2018

      You ask a very good question. I'm afraid the very strong rules about confidentiality that apply to me as a California attorney prevent me from answering as I'd like.

      I can say that I think your experience is typical of large software firms. Most still ban AGPLv3, if not all GPLs or all copyleft licenses, by policy.

      Even when there are exploitable loopholes, they're typically narrow enough to require very close collaboration between legal and engineering, in the context of a very specific project, especially the first time. It's possible to exploit those loopholes, but not possible to prescribe how to do so by general policy. That used to be true of private changes to GPLv2 and GPLv3 code. We've seen exercises of those intentional gaps in copyleft operationalized as policy in firms that rely on them daily.

      If you see posts on https://writing.kemitchell.com that you like, you may also find https://blog.licensezero.com worth the candle.

    • evaneliasDec 2025

      I didn't say a trademark isn't a form of IP. I said their application for a trademark was rejected due to "open source" being too generic/descriptive, not due to the reason you directly asserted above ("They don't hold the IP, I don't really see any way they could be granted a trademark on it").

      You can read more about this at https://opensource.org/pressreleases/certified-open-source.php or https://www.techmonitor.ai/technology/open_source_initiative_gives_up_on_trademark/ among many other sources. Or a much longer blog post from a lawyer who is active on HN: https://writing.kemitchell.com/2020/05/11/Open-Source-Property

      fwiw, a non-OSI attempt to trademark "open source hardware" was also rejected for the exact same reason. https://opensource.com/law/13/5/os-hardware-trademark-rejected

    Related

    James Bottomleyblog.hansenpartnership.com55 people

    Lessons from the Gnome Patent Troll Incident

    James Bottomley
    Personal · last shared 2026
    Nick Cameronncameron.org65 people

    Rust in 2022

    Nick Cameron
    Personal · last shared 2026
    Heather Meekerheathermeeker.com16 people

    French court issues damages award for violation of GPL

    Heather Meeker
    Personal · last shared 2026
    Bradley Kuhnebb.org98 people

    Why Greet Apple's Swift 2.0 With Open Arms?

    Bradley Kuhn
    Personal · last shared 2025
    Lawrence Rosenrosenlaw.com19 people

    Linking and Derivative Works (2004)

    Lawrence Rosen
    Personal · last shared 2023
    Open Source Initiative Blogblog.opensource.org33 people

    Gnome patent troll stripped of patent rights

    Open Source Initiative Blog
    Company · last shared 2024
    Bruce Perensperens.com63 people

    Intel Publishes Microcode Patches, No Benchmarking or Comparison Allowed

    Bruce Perens
    Personal · last shared 2026
    Matthew Butterickmatthewbutterick.com31 people

    Justice Stevens reads the fine print

    Matthew Butterick
    Personal · last shared 2026