nixos/fwupd: cannot disable firmware reports

Nixpkgs version

• Unstable (25.11)

Describe the bug

fwupd has a feature where users can report firmware updates to "[help] hardware vendors to quickly identify failing and successful updates on real devices". This is opt-in, but fwupd will nag the user about it when running fwupdmgr get-updates, unless the feature is disabled. However, disabling this feature entails editing files in /etc/fwupd/remotes.d/, which are overwritten by NixOS when the system is activated, therefore re-enabling the feature. It also appears to be impossible to modify this from a NixOS configuration, as this configuration is remote-specific (ReportURI), but the NixOS module appears to only permit modification of the general config.

I feel like this is a recent issue, as I believe I have updated my firmware with fwupdmgr before on this install, but I don't recall running into this problem.

Steps to reproduce

1. Update firmware with fwupd;
2. Run fwupdmgr get-updates;
3. Reject request to upload, and disable the feature;
4. Run fwupdmgr get-updates again, and notice that disabling did work;
5. Reboot the system;
6. Run fwupdmgr get-updates once more, and notice that it got re-enabled.

Expected behaviour

It should remain disabled in step 6.

Screenshots

No response

Relevant log output

Additional context

No response

System metadata

• system: "x86_64-linux"
• host os: Linux 6.17.1, NixOS, 25.11 (Xantusia), 25.11.20251015.544961d
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.32.0
• nixpkgs: /nix/store/rcsmdj802sk3w9l8m0b0bvdy0jiw2wgr-source

Notify maintainers

@R-VdP @JohnAZoidberg

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Start with the NixOS fwupd module and inspect how it generates files under /etc/fwupd/remotes.d/. Reproduce the setting through system activation and a reboot, then use fwupdmgr get-updates to verify that firmware reporting remains disabled. The issue does not name a source file or test.