mirror of
https://github.com/NixOS/nix
synced 2025-06-24 18:01:16 +02:00
John Ericson
GitHub
commit
45726dcc55
5 changed files with 190 additions and 21 deletions
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@ -1,19 +0,0 @@
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---
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synopsis: "C API: functions for locking and loading a flake"
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issues: 10435
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prs: [12877, 13098]
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---
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This release adds functions to the C API for handling the loading of flakes. Previously, this had to be worked around by using `builtins.getFlake`.
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C API consumers and language bindings now have access to basic locking functionality.
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It does not expose the full locking API, so that the implementation can evolve more freely.
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Locking is controlled with the functions, which cover the common use cases for consuming a flake:
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- `nix_flake_lock_flags_set_mode_check`
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- `nix_flake_lock_flags_set_mode_virtual`
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- `nix_flake_lock_flags_set_mode_write_as_needed`
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- `nix_flake_lock_flags_add_input_override`, which also enables `virtual`
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This change also introduces the new `nix-fetchers-c` library, whose single purpose for now is to manage the (`nix.conf`) settings for the built-in fetchers.
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More details can be found in the [C API documentation](@docroot@/c-api.md).
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@ -136,6 +136,7 @@
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- [Contributing](development/contributing.md)
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- [Releases](release-notes/index.md)
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{{#include ./SUMMARY-rl-next.md}}
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- [Release 2.29 (2025-05-14)](release-notes/rl-2.29.md)
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- [Release 2.28 (2025-04-02)](release-notes/rl-2.28.md)
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- [Release 2.27 (2025-03-03)](release-notes/rl-2.27.md)
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- [Release 2.26 (2025-01-22)](release-notes/rl-2.26.md)
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160
doc/manual/source/release-notes/rl-2.29.md
Normal file
160
doc/manual/source/release-notes/rl-2.29.md
Normal file
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@ -0,0 +1,160 @@
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# Release 2.29.0 (2025-05-14)
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After the special backport-based release of Nix 2.28 (timed to coincide with Nixpkgs 25.05), the release process is back to normal with 2.29.
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As such, we have slightly more weeks of work from `master` (since 2.28 was branched from 2.27) than usual.
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This fact is counterbalanced by the fact that most of those changes are bug fixes rather than larger new features.
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- Prettified JSON output on the terminal [#12555](https://github.com/NixOS/nix/issues/12555) [#12652](https://github.com/NixOS/nix/pull/12652)
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This makes the output easier to read.
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Scripts are mostly unaffected because for those, stdout will be a file or a pipe, not a terminal, and for those, the old single-line behavior applies.
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`--json --pretty` can be passed to enable it even if the output is not a terminal.
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If your script creates a pseudoterminal for Nix's stdout, you can pass `--no-pretty` to disable the new behavior.
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- Repl: improve continuation prompt for incomplete expressions [#12846](https://github.com/NixOS/nix/pull/12846)
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Improved REPL user experience by updating the continuation prompt from invisible blank spaces to a visible `" > "`, enhancing clarity when entering multi-line expressions.
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- REPL `:load-flake` and `:reload` now work together [#8753](https://github.com/NixOS/nix/issues/8753) [#13180](https://github.com/NixOS/nix/pull/13180)
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Previously, `:reload` only reloaded the files specified with `:load` (or on the command line).
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Now, it also works with the flakes specified with `:load-flake` (or on the command line).
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This makes it correctly reload everything that was previously loaded, regardless of what sort of thing (plain file or flake) each item is.
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- Increase retry delays on HTTP 429 Too Many Requests [#13052](https://github.com/NixOS/nix/pull/13052)
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When downloading Nix, the retry delay was previously set to 0.25 seconds. It has now been increased to 1 minute to better handle transient CI errors, particularly on GitHub.
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- S3: opt-in the STSProfileCredentialsProvider [#12646](https://github.com/NixOS/nix/pull/12646)
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Added support for STS-based authentication for S3-based binary caches, i.e. enabling seamless integration with `aws sso login`.
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- Reduce connect timeout for http substituter [#12876](https://github.com/NixOS/nix/pull/12876)
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Previously, the Nix setting `connect-timeout` had no limit. It is now set to `5s`, offering a more practical default for users self-hosting binary caches, which may occasionally become unavailable, such as during updates.
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- C API: functions for locking and loading a flake [#10435](https://github.com/NixOS/nix/issues/10435) [#12877](https://github.com/NixOS/nix/pull/12877) [#13098](https://github.com/NixOS/nix/pull/13098)
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This release adds functions to the C API for handling the loading of flakes. Previously, this had to be worked around by using `builtins.getFlake`.
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C API consumers and language bindings now have access to basic locking functionality.
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It does not expose the full locking API, so that the implementation can evolve more freely.
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Locking is controlled with the functions, which cover the common use cases for consuming a flake:
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- `nix_flake_lock_flags_set_mode_check`
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- `nix_flake_lock_flags_set_mode_virtual`
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- `nix_flake_lock_flags_set_mode_write_as_needed`
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- `nix_flake_lock_flags_add_input_override`, which also enables `virtual`
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This change also introduces the new `nix-fetchers-c` library, whose single purpose for now is to manage the (`nix.conf`) settings for the built-in fetchers.
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More details can be found in the [C API documentation](@docroot@/c-api.md).
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- No longer copy flakes that are in the nix store [#10435](https://github.com/NixOS/nix/issues/10435) [#12877](https://github.com/NixOS/nix/pull/12877) [#13098](https://github.com/NixOS/nix/pull/13098)
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Previously, we would duplicate entries like `path:/nix/store/*` back into the Nix store.
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This was prominently visible for pinned system flake registry entries in NixOS, e.g., when running `nix run nixpkgs#hello`.
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- Consistently preserve error messages from cached evaluation [#12762](https://github.com/NixOS/nix/issues/12762) [#12809](https://github.com/NixOS/nix/pull/12809)
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In one code path, we are not returning the errors cached from prior evaluation, but instead throwing generic errors stemming from the lack of value (due to the error).
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These generic error messages were far less informative.
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Now we consistently return the original error message.
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- Faster blake3 hashing [#12676](https://github.com/NixOS/nix/pull/12676)
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The implementation for blake3 hashing is now multi-threaded and used memory-mapped IO.
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Benchmark results can be found the [pull request](https://github.com/NixOS/nix/pull/12676).
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- Fix progress bar for S3 binary caches and make file transfers interruptible [#12877](https://github.com/NixOS/nix/issues/12877) [#13098](https://github.com/NixOS/nix/issues/13098) [#12538](https://github.com/NixOS/nix/pull/12538)
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The progress bar now correctly display upload/download progress for S3 up/downloads. S3 uploads are now interruptible.
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- Add host attribute of github/gitlab flakerefs to URL serialization [#12580](https://github.com/NixOS/nix/pull/12580)
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Resolved an issue where `github:` or `gitlab:` URLs lost their `host` attribute when written to a lockfile, resulting in invalid URLs.
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- Multiple signatures support in store urls [#12976](https://github.com/NixOS/nix/pull/12976)
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Added support for a `secretKeyFiles` URI parameter in Nix store URIs, allowing multiple signing key files to be specified as a comma-separated list.
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This enables signing paths with multiple keys. This helps with [RFC #149](https://github.com/NixOS/rfcs/pull/149) to enable binary cache key rotation in the NixOS infra.
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Example usage:
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```bash
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nix copy --to "file:///tmp/store?secret-keys=/tmp/key1,/tmp/key2" \
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"$(nix build --print-out-paths nixpkgs#hello)"
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```
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- nix flake show now skips over import-from-derivation [#4265](https://github.com/NixOS/nix/issues/4265) [#12583](https://github.com/NixOS/nix/pull/12583)
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Previously, if a flake contained outputs relying on [import from derivation](@docroot@/language/import-from-derivation.md) during evaluation, `nix flake show` would fail to display the rest of the flake. The updated behavior skips such outputs, allowing the rest of the flake to be shown.
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- Add `nix formatter build` and `nix formatter run` commands [#13063](https://github.com/NixOS/nix/pull/13063)
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`nix formatter run` is an alias for `nix fmt`. Nothing new there.
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`nix formatter build` is sort of like `nix build`: it builds, links, and prints a path to the formatter program:
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```
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$ nix formatter build
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/nix/store/cb9w44vkhk2x4adfxwgdkkf5gjmm856j-treefmt/bin/treefmt
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```
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Note that unlike `nix build`, this prints the full path to the program, not just the store path (in the example above that would be `/nix/store/cb9w44vkhk2x4adfxwgdkkf5gjmm856j-treefmt`).
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- Amend OSC 8 escape stripping for xterm-style separator [#13109](https://github.com/NixOS/nix/pull/13109)
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Improve terminal escape code filtering to understand a second type of hyperlink escape codes.
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This in particular prevents parts of GCC 14's diagnostics from being improperly filtered away.
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# Contributors
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This release was made possible by the following 40 contributors:
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- Farid Zakaria [**(@fzakaria)**](https://github.com/fzakaria)
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- The Tumultuous Unicorn Of Darkness [**(@TheTumultuousUnicornOfDarkness)**](https://github.com/TheTumultuousUnicornOfDarkness)
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- Robert Hensing [**(@roberth)**](https://github.com/roberth)
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- Félix [**(@picnoir)**](https://github.com/picnoir)
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- Valentin Gagarin [**(@fricklerhandwerk)**](https://github.com/fricklerhandwerk)
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- Eelco Dolstra [**(@edolstra)**](https://github.com/edolstra)
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- Vincent Breitmoser [**(@Valodim)**](https://github.com/Valodim)
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- Brian McKenna [**(@puffnfresh)**](https://github.com/puffnfresh)
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- ulucs [**(@ulucs)**](https://github.com/ulucs)
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- John Ericson [**(@Ericson2314)**](https://github.com/Ericson2314)
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- Andrey Butirsky [**(@bam80)**](https://github.com/bam80)
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- Dean De Leo [**(@whatsthecraic)**](https://github.com/whatsthecraic)
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- Las Safin [**(@L-as)**](https://github.com/L-as)
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- Sergei Zimmerman [**(@xokdvium)**](https://github.com/xokdvium)
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- Shahar "Dawn" Or [**(@mightyiam)**](https://github.com/mightyiam)
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- Ryan Hendrickson [**(@rhendric)**](https://github.com/rhendric)
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- Rodney Lorrimar [**(@rvl)**](https://github.com/rvl)
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- Erik Nygren [**(@Kirens)**](https://github.com/Kirens)
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- Cole Helbling [**(@cole-h)**](https://github.com/cole-h)
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- Martin Fischer [**(@not-my-profile)**](https://github.com/not-my-profile)
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- Graham Christensen [**(@grahamc)**](https://github.com/grahamc)
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- Vit Gottwald [**(@VitGottwald)**](https://github.com/VitGottwald)
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- silvanshade [**(@silvanshade)**](https://github.com/silvanshade)
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- Illia Bobyr [**(@ilya-bobyr)**](https://github.com/ilya-bobyr)
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- Jeremy Fleischman [**(@jfly)**](https://github.com/jfly)
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- Ruby Rose [**(@oldshensheep)**](https://github.com/oldshensheep)
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- Sergei Trofimovich [**(@trofi)**](https://github.com/trofi)
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- Tim [**(@Jaculabilis)**](https://github.com/Jaculabilis)
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- Anthony Wang [**(@anthowan)**](https://github.com/anthowan)
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- Jörg Thalheim [**(@Mic92)**](https://github.com/Mic92)
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- Sandro [**(@SuperSandro2000)**](https://github.com/SuperSandro2000)
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- tomberek [**(@tomberek)**](https://github.com/tomberek)
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- Dmitry Bogatov [**(@KAction)**](https://github.com/KAction)
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- Sizhe Zhao [**(@Prince213)**](https://github.com/Prince213)
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- jade [**(@lf-)**](https://github.com/lf-)
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- Pierre-Etienne Meunier [**(@P-E-Meunier)**](https://github.com/P-E-Meunier)
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- Alexander Romanov [**(@ajlekcahdp4)**](https://github.com/ajlekcahdp4)
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- Domagoj Mišković [**(@allrealmsoflife)**](https://github.com/allrealmsoflife)
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- Thomas Miedema [**(@thomie)**](https://github.com/thomie)
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- Yannik Sander [**(@ysndr)**](https://github.com/ysndr)
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- Philipp Otterbein
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- Dmitry Bogatov
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@ -152,5 +152,19 @@
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"kaction@disroot.org": "KAction",
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"serenity@kaction.cc": null,
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"dev@erik.work": "Kirens",
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"felix@alternativebit.fr": "picnoir"
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"felix@alternativebit.fr": "picnoir",
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"butirsky@gmail.com": "bam80",
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"look@my.amazin.horse": "Valodim",
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"jeremyfleischman@gmail.com": "jfly",
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"vit.gottwald@gmail.com": "VitGottwald",
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"a@unnamed.website": "anthowan",
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"hello@whatsthecraic.net": "whatsthecraic",
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"alex.rom23@mail.ru": "ajlekcahdp4",
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"domagoj@tuta.com": "allrealmsoflife",
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"uluc.sengil@gmail.com": "ulucs",
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"prc.zhao@outlook.com": "Prince213",
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"the-tumultuous-unicorn-of-darkness@gmx.com": "TheTumultuousUnicornOfDarkness",
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"dev@rodney.id.au": "rvl",
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"pe@pijul.org": "P-E-Meunier",
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"yannik@floxdev.com": "ysndr"
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}
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@ -133,5 +133,18 @@
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"oldshensheep": "Ruby Rose",
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"KAction": "Dmitry Bogatov",
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"thomie": "Thomas Miedema",
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"Kirens": "Erik Nygren"
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"Kirens": "Erik Nygren",
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"Prince213": "Sizhe Zhao",
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"anthowan": "Anthony Wang",
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"jfly": "Jeremy Fleischman",
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"VitGottwald": "Vit Gottwald",
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"bam80": "Andrey Butirsky",
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"ulucs": null,
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"P-E-Meunier": "Pierre-Etienne Meunier",
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"ysndr": "Yannik Sander",
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"TheTumultuousUnicornOfDarkness": "The Tumultuous Unicorn Of Darkness",
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"ajlekcahdp4": "Alexander Romanov",
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"Valodim": "Vincent Breitmoser",
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"rvl": "Rodney Lorrimar",
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"whatsthecraic": "Dean De Leo"
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}
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