nix: configure sharefs as a mount unit

This should have been configured via fileSystem instead, but that somehow has no effect, it is not even being evaluated, and I am not wasting any more time on nix. This change aims to keep everything working until all nix/systemd tooling is replaced.

Signed-off-by: Ophestra <cat@gensokyo.uk>

flake.nix

@@ -138,6 +138,10 @@
               ;
           };
           hsu = pkgs.callPackage ./cmd/hsu/package.nix { inherit (self.packages.${system}) hakurei; };
+          sharefs = pkgs.linkFarm "sharefs" {
+            "bin/sharefs" = "${hakurei}/libexec/sharefs";
+            "bin/mount.fuse.sharefs" = "${hakurei}/libexec/sharefs";
+          };
 
           dist = pkgs.runCommand "${hakurei.name}-dist" { buildInputs = hakurei.targetPkgs ++ [ pkgs.pkgsStatic.musl ]; } ''
             # go requires XDG_CACHE_HOME for the build cache