OpenWRT documentation outdated?

[ToxicFrog]

The installation instructions say that "packages are available for several Linux distributions" and list OpenWRT as one of them. The section for OpenWRT says to pass the ipk file itself to opkg, which implies that, rather than fetching it from the official repos (which would just be opkg install snapclient), you're meant to download the ipk manually and then install it. But the releases don't include an ipk for any architecture.

Checking opkg just in case, it's not in the repos for either mipsel_24kc or armv7l (which are the two openwrt devices I have). Rummaging around more, it looks like the expectation these days is to use SnapOS instead, which appears to be a fairly involved process.

Am I missing something, or is that now the only supported way to install snapclient on openwrt? If so, the docs should probably be updated to no longer list it as having prebuilt packages for openwrt.

[ToxicFrog]

For anyone using nixos, you can build a statically linked version that will run on openwrt arm7 thus:

let
  nixpkgs = (import <nixpkgs> {});
  pkgs = nixpkgs.pkgsCross.armv7l-hf-multiplatform.pkgsStatic;
  soxr = pkgs.soxr.overrideAttrs {
    cmakeFlags = pkgs.soxr.cmakeFlags
      ++ [ "-DWITH_OPENMP=off" ];
  };
in
  (pkgs.snapcast.override {
    pulseaudioSupport = false; libpulseaudio = null;
    avahi = null;
    inherit soxr;
  }).overrideAttrs {
    nativeBuildInputs = pkgs.snapcast.nativeBuildInputs
      ++ [ nixpkgs.pkgs.makeWrapper ];
    cmakeFlags = pkgs.snapcast.cmakeFlags
      ++ [ "-DBUILD_SERVER=off" "-DBUILD_CLIENT=on" ];
    postFixup = ''
      wrapProgram $out/bin/snapclient \
        --set ALSA_CONFIG_DIR /usr/share/alsa
      sed -Ei '
        s,/nix/store/.*/bin/bash.*,/bin/sh,
        s,/nix/store/.*snapclient-wrapped,$(dirname "$0")/.snapclient-wrapped,
      ' $out/bin/snapclient
    '';
  }

[kerta1n]

Checking opkg just in case, it's not in the repos for either mipsel_24kc or armv7l (which are the two openwrt devices I have). Rummaging around more, it looks like the expectation these days is to use SnapOS instead, which appears to be a fairly involved process.

You need to build the Snapcast package for your architecture using OpenWRT's SDK (23.05.0 latest release at time of writing). Go here, then go to your CPU arch, then family, and scroll all the way to the bottom. You'll find your SDK file under Supplementary Files (e.g. mine for the cheap supported Archer C6 was openwrt-sdk-23.05.0-ramips-mt7621_gcc-12.3.0_musl.Linux-x86_64.tar.xz).

Just follow the rest of the build instructions from there and you should have the ipk file sitting in your build dir.

P.S: If someone needs a 23.05.0-supported architecture built, just respond to this as a reply