Add `gnupg` as part of the Nix-based development environment, which is a dependency for a small number of integration tests like `TestInstanceSigning`. Bumps `flake.lock` from its current 2025-11-12 to current 2026-05-05 pin, bringing updated tools referenced in `shell.nix`.
```
$ nix flake update
• Updated input 'nixpkgs':
'github:nixos/nixpkgs/c5ae371f1a6a7fd27823bc500d9390b38c05fa55?narHash=sha256-4PqRErxfe%2B2toFJFgcRKZ0UI9NSIOJa%2B7RXVtBhy4KE%3D' (2025-11-12)
→ 'github:nixos/nixpkgs/549bd84d6279f9852cae6225e372cc67fb91a4c1?narHash=sha256-hGdgeU2Nk87RAuZyYjyDjFL6LK7dAZN5RE9%2BhrDTkDU%3D' (2026-05-05)
```
## Checklist
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### Documentation
- [ ] I created a pull request [to the documentation](https://codeberg.org/forgejo/docs) to explain to Forgejo users how to use this change.
- [x] I did not document these changes and I do not expect someone else to do it.
### Release notes
- [ ] This change will be noticed by a Forgejo user or admin (feature, bug fix, performance, etc.). I suggest to include a release note for this change.
- [x] This change is not visible to a Forgejo user or admin (refactor, dependency upgrade, etc.). I think there is no need to add a release note for this change.
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/12497
Reviewed-by: Andreas Ahlenstorf <aahlenst@noreply.codeberg.org>
This is a small change to remove numtide/flake-utils from flake.nix. It is not really needed, a more novel way is to map over `nixpkgs.legacyPackages`.
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/9805
Reviewed-by: Mathieu Fenniak <mfenniak@noreply.codeberg.org>
Reviewed-by: Ellen Εμιλία Άννα Zscheile <fogti@noreply.codeberg.org>
Reviewed-by: famfo <famfo@famfo.xyz>
Co-authored-by: polyfloyd <floyd@polyfloyd.net>
Co-committed-by: polyfloyd <floyd@polyfloyd.net>
To try it you need **nix** installed `nix-daemon ` running and your user
has to be member of the **nix-users** group. Or use NixOS.
then by just:
```sh
nix develop -c $SHELL
```
a dedicated development environment with all needed packages will be
created.
(cherry picked from commit de6f0488a67ad65bd2ac40356b08a78a365414cd)
