Add a role for mitmproxy.

nix/configuration/configuration.nix

@@ -64,6 +64,7 @@ in
     ./roles/media
     ./roles/memtest86
     ./roles/minimal_base
+    ./roles/mitmproxy
     ./roles/network
     ./roles/nix_index
     ./roles/nix_repl

nix/configuration/hosts/odo/default.nix

@@ -118,6 +118,7 @@
     me.lvfs.enable = true;
     me.media.enable = true;
     me.memtest.enable = true;
+    me.mitmproxy.enable = true;
     me.network.enable = true;
     me.nix_index.enable = true;
     me.nix_repl.enable = true;

nix/configuration/hosts/quark/default.nix

@@ -111,6 +111,7 @@
     me.lvfs.enable = true;
     me.media.enable = true;
     me.memtest.enable = true;
+    me.mitmproxy.enable = true;
     me.network.enable = true;
     me.nix_index.enable = true;
     me.nix_repl.enable = true;

nix/configuration/roles/mitmproxy/default.nix

@@ -0,0 +1,25 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+  imports = [ ];
+
+  options.me = {
+    mitmproxy.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = true;
+      description = "Whether we want to install mitmproxy.";
+    };
+  };
+
+  config = lib.mkIf config.me.mitmproxy.enable {
+    environment.systemPackages = with pkgs; [
+      mitmproxy
+    ];
+  };
+}