chia: force downgrade

flake.lock

@@ -124,6 +124,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-chia": {
+      "locked": {
+        "lastModified": 1661317206,
+        "narHash": "sha256-AlIqr/oyha8JnmVYmeDIb2ENR9wq0aZwI0XYVoshU0Q=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "0305391fb65b5bdaa8af3c48275ec0df1cdcc34e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "0305391fb65b5bdaa8af3c48275ec0df1cdcc34e",
+        "type": "github"
+      }
+    },
     "nixpkgs-unstable": {
       "locked": {
         "lastModified": 1685655444,
@@ -146,6 +162,7 @@
         "darwin": "darwin_2",
         "home-manager": "home-manager_2",
         "nixpkgs": "nixpkgs",
+        "nixpkgs-chia": "nixpkgs-chia",
         "nixpkgs-unstable": "nixpkgs-unstable"
       }
     },

flake.nix

@@ -2,6 +2,7 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-22.11";
     nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
+    nixpkgs-chia.url = "github:nixos/nixpkgs?rev=0305391fb65b5bdaa8af3c48275ec0df1cdcc34e";
 
     darwin.url = "github:lnl7/nix-darwin/master";
     darwin.inputs.nixpkgs.follows = "nixpkgs";
@@ -15,7 +16,7 @@
 
   description = "Hillion Nix flake";
 
-  outputs = { self, nixpkgs, nixpkgs-unstable, agenix, home-manager, darwin, ... }@inputs: {
+  outputs = { self, nixpkgs, nixpkgs-unstable, nixpkgs-chia, agenix, home-manager, darwin, ... }@inputs: {
     nixosConfigurations =
       let
         fqdns = builtins.attrNames (builtins.readDir ./hosts);

modules/chia.nix

@@ -1,7 +1,8 @@
-{ config, pkgs, lib, ... }:
+{ config, pkgs, lib, nixpkgs-chia, ... }:
 
 let
   cfg = config.custom.chia;
+  chia = nixpkgs-chia.legacyPackages.x86_64-linux.chia;
 in
 {
   options.custom.chia = {
@@ -30,7 +31,7 @@ in
   };
 
   config = lib.mkIf cfg.enable {
-    environment.systemPackages = with pkgs; [ chia ];
+    environment.systemPackages = [ chia ];
 
     users.groups.chia = { };
     users.users.chia = {
@@ -44,8 +45,8 @@ in
       description = "Chia daemon.";
       wantedBy = [ "multi-user.target" ];
 
-      preStart = with pkgs; lib.strings.concatStringsSep "\n" ([ "${pkgs.chia}/bin/chia init" ]
-        ++ (if cfg.keyFile == null then [ ] else [ "${pkgs.chia}/bin/chia keys add -f ${cfg.keyFile}" ])
+      preStart = lib.strings.concatStringsSep "\n" ([ "${chia}/bin/chia init" ]
+        ++ (if cfg.keyFile == null then [ ] else [ "${chia}/bin/chia keys add -f ${cfg.keyFile}" ])
         ++ (if cfg.targetAddress == null then [ ] else [
         ''
           ${pkgs.yq-go}/bin/yq e \
@@ -59,8 +60,8 @@ in
               -i ${cfg.path}/.chia/mainnet/config/config.yaml
         ''
       ]));
-      script = with pkgs; "${pkgs.chia}/bin/chia start farmer";
-      preStop = with pkgs; "${pkgs.chia}/bin/chia stop -d farmer";
+      script = "${chia}/bin/chia start farmer";
+      preStop = "${chia}/bin/chia stop -d farmer";
 
       serviceConfig = {
         Type = "forking";