The intention of this list is to raise awareness of this technology's usage in popular software, as well as give people informed alternatives that they can reach for when they want to make decisions for themselves. This is not a list created so you can go and give these projects trouble for their decision. If you want to file a complaint about it with them, we consider that acceptable but ask that it be done respectfully and constructively.
> This is a fork of a repo by the same name maintained by the @gen-ai-transparency org on Codeberg. If they up their repo again, we will contribute back.
| Firefox | [LibreWolf](https://librewolf.net/), several other forks | [Blog post collecting details](https://alextheward.com/blog/mozilla_is_now_an_ai_company/) |
| [`yash`](https://magicant.github.io/yash/) | `dash` shell, but there are no other major shells fully targeting POSIX | [Assigns and auto-reviews MRs with LLMs](https://github.com/magicant/yash/pull/217#issue-3699124790) |
| [RawTherapee](https://github.com/RawTherapee/RawTherapee/) | Stick to version 5.12 | Use Copilot for review [PR7518](https://github.com/RawTherapee/RawTherapee/pull/7518#pullrequestreview-3348449593), [PR 7435](https://github.com/RawTherapee/RawTherapee/pull/7435#pullrequestreview-3059697445), [PR 7378](https://github.com/RawTherapee/RawTherapee/pull/7378#pullrequestreview-2969042638) and code changes [commit c4b0400](https://github.com/RawTherapee/RawTherapee/commit/c4b04007107a426dd7011002e8085aa6f398ab60) |
| [`cargo-nextest`](https://github.com/nextest-rs/nextest) | Just use `cargo test` | [`CLAUDE.md` and `AGENTS.md` in repository](https://github.com/nextest-rs/nextest/commit/3853279b41cc4a81f82e26fd88fac3bf85054af5) |
| [`jujutsu`](https://www.jj-vcs.dev/latest/) | continue using `git` itself | [A core dev occasionally uses Claude to generate local test cases.](https://codeberg.org/gen-ai-transparency/open-slopware/src/branch/main/img/Screenshot%202026-01-08%20at%2016.13.46.png), [(Discord link)](https://discord.com/channels/968932220549103686/1458877549034864703) |
| [`oh-my-posh`](https://github.com/JanDeDobbeleer/oh-my-posh/) | [Starship] | [`AGENTS.md` file in main repository](https://github.com/JanDeDobbeleer/oh-my-posh/commit/0ca76357a608f2e4043e10fe9591709ca554d75d) |
| [`oh-my-bash`](https://github.com/ohmybash/oh-my-bash) | [Starship] | [All PRs are reviewed with "Qodo"](https://github.com/apps/qodo-free-for-open-source-projects) [Example PR](https://github.com/ohmybash/oh-my-bash/pull/729) |
| [`ohmyzsh`](https://github.com/ohmyzsh/ohmyzsh) | [Starship] | [Added Claude and Grok as search engines](https://github.com/ohmyzsh/ohmyzsh/pull/13222) |
Suggestions for alternative programming languages are necessarily more complex than many other categories considered here, as that's one of the core technical choices to be made when starting a new software development project.
Depending on your needs and technical concerns, you may find any number of different alternative languages useful. For example, when considering alternatives to .NET, Java or Scala may be interesting candidates from the perspective of being similar VM-based frameworks, while Python or Rust may be interesting alternatives in other ways.
| [Zed](https://zed.dev) | [Lapce](https://lap.dev/lapce/), other popular editors like neovim, emacs, etc | They prominently advertise genAI features as a core part of their product. See their website. | There's a killswitch to disable genAI features entirely, but it's likely the code itself is still heavily LLM-authored. |
| [VS Code](https://code.visualstudio.com/) | [VS Codium](https://vscodium.com/)* removes the AI _features_ from VS Code | [It's literally their main advertising tagline](./img/vscode.png), and they publicly use LLMs in [their public repository](https://github.com/microsoft/vscode/pulls). Most AI "features" are enabled by default, and some cannot be disabled. | *VS Codium is still written with LLMs since Microsoft owns it |
| [espeak-ng](https://github.com/espeak-ng/espeak-ng) | [flite](http://cmuflite.org/) | [Dev uses copilot for review](https://github.com/espeak-ng/espeak-ng/pull/2328#pullrequestreview-3559773058) and [is setting up copilot instructions](https://github.com/espeak-ng/espeak-ng/pull/2302) | espeak still exists, but is heavily outdated and very bad from a modern standpoint, so it cannot be considered as an alternative. `flite` users may also wish to install `speech-dispatcher-flite`. |
| [FastLED](https://fastled.io/) | | [`.claude` and `.cursor` folders in main repository](https://github.com/FastLED/FastLED/commit/d0d3627eded2e83f52a16763950de94e70c35c4e) |
| [`facet`](https://github.com/facet-rs/facet) | Use more specific deserialization libraries and avoid macros that slow things down anyway. [`serde`](https://serde.rs) itself is [tainted by its Palantir-defending author](https://archive.ph/fe9g5). [`nanoserde`](https://github.com/not-fl3/nanoserde) could be suitable for certain use cases. | [Core developer openly uses LLMs for library dev](https://archive.ph/YhcOh) | |
| [`ratatui`](https://github.com/ratatui/ratatui) | [`iocraft`](https://github.com/ccbrown/iocraft) and [`cursive`](https://github.com/gyscos/cursive). [`console`](https://github.com/console-rs/console) and its family of libraries may also be enough for some use cases. | [Core developer has stated their use of AI for rust code](https://github.com/ratatui/ratatui/discussions/2201) | |
| [`tailwindcss`](https://github.com/tailwindlabs/tailwindcss) | [`twind`](https://github.com/tw-in-js/twind) | [Sponsorship page states explicitly that the founder uses AI to write code and even sells access to his "Cursor/Claude/AGENTS.md rules"](https://tailwindcss.com/sponsor) | |
| [UPBGE 0.5](https://upbge.org) | UPBGE 0.36.1 seems to be slop-free | [0.5 release notes state the use of AI in plain language](https://github.com/UPBGE/upbge/wiki/Release-notes-version-0.50#b-implementation-technique-and-limitations) |
| [Calibre 8.16.2](https://calibre-ebook.com) | [BookLore](https://booklore.org/)<br /> [Clbre](https://github.com/grimthorpe/clbre), a Calibre fork without AI<br /> [Arcalibre](https://codeberg.org/rereading/arcalibre), a Calibre hard-fork from before AI features | [Added "Discuss selected book(s) with AI" feature](https://github.com/kovidgoyal/calibre/blob/master/Changelog.txt)
| [Ghost](https://ghost.org/) | [WriteFreely] | Include configurations for [Claude](https://github.com/TryGhost/Ghost/tree/main/.claude) and [cursor](https://github.com/TryGhost/Ghost/blob/main/.cursor/rules/yarn.mdc); images on website seem generated |
| [SeaweedFS](https://seaweedfs.com/) | [Garage] for S3 api + [JuiceFS](https://juicefs.com/en/) for the NFS mounts ad K8s CSI driver - or [Rook/Ceph](https://rook.io/) | Using [Gemini and coderabbitai in PRs](https://github.com/seaweedfs/seaweedfs/pull/7996). |
| [Bluesky](https://bsky.app) | [Mastodon](https://joinmastodon.org/), [GoToSocial](https://codeberg.org/superseriousbusiness/gotosocial) | [CTO discusses using Claude in development](https://bsky.app/profile/pfrazee.com/post/3luyb3jcbv52d) |
| [IceCubesApp for iOS](https://github.com/Dimillian/IceCubesApp) | [Feditext](https://github.com/feditext/feditext), an iOS fediverse app in beta | Project uses [Claude](https://github.com/Dimillian/IceCubesApp/blob/main/CLAUDE.md)
| [Linux Kernel](https://kernel.org/) | BSD? Honestly this one's tough | [Maintainers are explicitly trying out the technology and considering LLM-based reviews](https://lwn.net/Articles/1041694/)
1. LLMs are often trained on, and thus prone to, regurgitate either completely, or in-part, chunks of code that are licensed under terms which have specific legal requirements that a sloperator may not understand or even be aware of when making a contribution. Regardless of this ignorance, it falls to the repo's owner to comply with the terms of any and all licensed code integrated into their project.
To start learning a bit more, you can checkout the wikipedia page on [Environmental impact of artificial intelligence](https://en.wikipedia.org/wiki/Environmental_impact_of_artificial_intelligence#Individual_level). We're very open to people contributing other explanations, links, and resources to learn more about this.
