# 2024-02-12 Nix team meeting minutes #212.5

**URL:** https://discourse.nixos.org/t/2024-02-12-nix-team-meeting-minutes-212-5/60216
**Category:** Nix
**Created:** [February 12, 2025, 9:37pm UTC](https://discourse.nixos.org/t/2024-02-12-nix-team-meeting-minutes-212-5/60216 "2025-02-12T21:37:01Z")
**Posts on this page:** 1
**Showing post:** 1

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### Author: ![roberth](https://discourse.nixos.org/user_avatar/discourse.nixos.org/roberth/32/5488_2.png) [@roberth](https://discourse.nixos.org/u/roberth)
#### Post date: [February 12, 2025, 9:37pm UTC](https://discourse.nixos.org/t/2024-02-12-nix-team-meeting-minutes-212-5/60216/1 "2025-02-12T21:37:01Z")

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Fractional meeting numbers. The future is here!

The past few meetings were a bit chaotic in terms of note taking, unfortunately, but we could salvage one or two bits and we’re getting back on track.

Attendance was mixed due to FOSDEM among other things, and on a few occasions, reviews were only posted directly.

Fortunately, we’re closing this post out with a banger of a triage meeting!

# 2024-01-27 Nix team meeting minutes #211

_Monday work session_

## Review

### [`fetchGit` input with `ref` and `narHash` specified, is now considered unlocked. · Issue #12027 · NixOS/nix · GitHub](https://github.com/NixOS/nix/issues/12027)

Opened [Do not require --allow-dirty-locks in pure `fetchTree`/`fetchGit` · Issue #12364 · NixOS/nix · GitHub](https://github.com/NixOS/nix/issues/12364)

# 2025-02-05 Nix tema meeting minutes

- [Add BLAKE3 hashing algorithm by silvanshade · Pull Request #12379 · NixOS/nix · GitHub](https://github.com/NixOS/nix/pull/12379#issuecomment-2637977897)

- [Add BLAKE3 hashing algorithm via Rust interop by silvanshade · Pull Request #12416 · NixOS/nix · GitHub](https://github.com/NixOS/nix/pull/12416#issuecomment-2637980643)

# 2025-02-10

Updates

- Nixpkgs Nix 2.26 merged [https://github.com/NixOS/nixpkgs/pull/375856](https://github.com/NixOS/nixpkgs/pull/375856)

# 2025-02-12 Meeting notes 212.5

Attendees: @edolstra @Ericson2314 @roberth

## Triage

### [Get rid of `impureOutputHash`; fix possible bug by Ericson2314 · Pull Request #6346 · NixOS/nix · GitHub](https://github.com/NixOS/nix/pull/6346)

- @ericson2314:Don’t think we need any impure hashes special-case, because the regular (floating) content-addressing derivation code path just works. The salient thing is not _how_ realisations are made, but _whether_ they are persisted in the database, or just left in memory.

- With and without this change, when anything depends on a CA or impure thing (whether the downstream thing is CA or IA) the downstream derivation will be _resolved_ first, so its `inputDrvs` are placed with `inputSrcs`. So all trace of how we got some path (pure CA, impure CA, something else) will be gone by the time we build the downstream thing.

Merged

### [Revert "Revert "Adapt scheduler to work with dynamic derivations by Ericson2314 · Pull Request #9415 · NixOS/nix · GitHub](https://github.com/NixOS/nix/pull/9415)

- @ericson2314 has fixed bugs that were newly detected by the test suite

- Has change wrt `ecFailed`, and substitution, which aligns with the symptoms we saw originally

Assigned to @roberth

### [Import symlink resolution regression · Issue #12449 · NixOS/nix · GitHub](https://github.com/NixOS/nix/issues/12449)

Closed.

We’re sticking with the older semantics, which we re prefer, and which we’ve restored on `master` and backported.

### [Nix's master branch has broken nix-build exit codes · Issue #4813 · NixOS/nix · GitHub](https://github.com/NixOS/nix/issues/4813)

Assigned to @roberth

### [nix flake prefetch: Add --out-link option by edolstra · Pull Request #12443 · NixOS/nix · GitHub](https://github.com/NixOS/nix/pull/12443)

Merged

### [More interesting dyn drv test case by Ericson2314 · Pull Request #12425 · NixOS/nix · GitHub](https://github.com/NixOS/nix/pull/12425)

Reviewed

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