Nixpkgs: Steam: Cannot install due to HTTP 404 errors

[setzer22]

Describe the bug
I've tried to install steam, both from the 20.03 and unstable channels. In both cases I get errors when the builder tries to download files from URLs starting with https://public.abbradar.moe/steamrt/...

trying https://public.abbradar.moe/steamrt/pool/main/s/steam-runtime-tools/libsteam-runtime-tools-0-helpers_0.20200109.0-0+steamrt1.1+srt1_amd64.deb
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 
error: cannot download libsteam-runtime-tools-0-helpers.deb from any mirror

trying https://public.abbradar.moe/steamrt/pool/main/s/steam-runtime-tools/libsteam-runtime-tools-0-helpers_0.20200109.0-0+steamrt1.1+srt1_i386.deb
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found

trying https://public.abbradar.moe/steamrt/pool/main/s/steam-runtime-tools/libsteam-runtime-tools-0-relocatable-libs_0.20200109.0-0+steamrt1.1+srt1_amd64.deb
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found

trying https://public.abbradar.moe/steamrt/pool/main/s/steam-runtime-tools/libsteam-runtime-tools-0-relocatable-libs_0.20200109.0-0+steamrt1.1+srt1_i386.deb

To Reproduce
Steps to reproduce the behavior:

1. Add steam to environment.systemPackages
2. Run nixos-rebuild switch

Expected behavior
Steam should be installed

Metadata

• system: "x86_64-linux"
• host os: Linux 5.4.35, NixOS, 20.03.1619.ab3adfe1c76 (Markhor)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.3.4
• channels(root): "nixos-20.03.1619.ab3adfe1c76"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

NOTE: I'm using the stable channel. The unstable channel is obtained using fetchTarball at https://github.com/NixOS/nixpkgs-channels/archive/nixos-unstable.tar.gz as described in: https://stackoverflow.com/questions/48831392/how-to-add-nixos-unstable-channel-declaratively-in-configuration-nix and the tarball was downloaded right now at the time of submitting the issue.

[pbogdan]

FWIW I believe this should have been fixed in https://github.com/NixOS/nixpkgs/pull/86358 although the update may not yet have trickled into the nixos-unstable channel. Also haven't checked if the change was backported to 20.03.

[Enteee]

You are right @pbogdan, #86358 fixed this. But unstable is 3 days old.
@setzer22: Either wait for unstable to update or install steam from master:

NIXPKGS_ALLOW_UNFREE=1 nix-env -f https://github.com/NixOS/nixpkgs/archive/master.tar.gz -iA steam

[prusnak]

Unstable fixed in https://github.com/NixOS/nixpkgs/pull/86358
Backport to 20.03 in https://github.com/NixOS/nixpkgs/pull/86619

[flokli]

Both PRs merged, it'll land in the channels soon. Closing here :-)

[setzer22]

Many thanks!!

@Enteee: Thank you! I was just wondering exactly how would I go about into installing from master :)