matrix-conduit: Stop using the version from unstable

flake.lock

@@ -289,22 +289,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-unstable": {
-      "locked": {
-        "lastModified": 1667610399,
-        "narHash": "sha256-XZd0f4ZWAY0QOoUSdiNWj/eFiKb4B9CJPtl9uO9SYY4=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "1dd8696f96db47156e1424a49578fe7dd4ce99a4",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1667564121,
@@ -406,7 +390,6 @@
       "inputs": {
         "deploy-rs": "deploy-rs",
         "nixpkgs": "nixpkgs_2",
-        "nixpkgs-unstable": "nixpkgs-unstable",
         "nvfetcher": "nvfetcher",
         "sops-nix": "sops-nix",
         "tlaternet-webserver": "tlaternet-webserver"

flake.nix

@@ -3,7 +3,6 @@
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-22.05";
-    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
     deploy-rs.url = "github:serokell/deploy-rs";
     sops-nix = {
       url = "github:Mic92/sops-nix";
@@ -22,7 +21,6 @@
   outputs = {
     self,
     nixpkgs,
-    nixpkgs-unstable,
     sops-nix,
     nvfetcher,
     deploy-rs,
@@ -66,7 +64,7 @@
     # Helper functions #
     ####################
     lib = import ./lib {
-      inherit nixpkgs nixpkgs-unstable sops-nix tlaternet-webserver;
+      inherit nixpkgs sops-nix tlaternet-webserver;
       lib = nixpkgs.lib;
     };
 

lib/default.nix

@@ -1,7 +1,6 @@
 {
   lib,
   nixpkgs,
-  nixpkgs-unstable,
   sops-nix,
   tlaternet-webserver,
 }: let
@@ -25,15 +24,6 @@ in {
           sops-nix.nixosModules.sops
           tlaternet-webserver.nixosModules.default
           (import ../configuration)
-          {
-            nixpkgs.overlays = [
-              (self: super: {
-                matrix-conduit = nixpkgs-unstable.legacyPackages.${system}.matrix-conduit.override {
-                  inherit (self) stdenv lib fetchFromGitLab rustPlatform pkg-config rocksdb;
-                };
-              })
-            ];
-          }
         ]
         ++ extraModules;
     };