use pkgs.lib.recursiveUpdate instead of //

alacritty/alacritty.yml

@@ -158,7 +158,7 @@ font:
     #style: Bold Italic
 
   # Point size
-  # size: 11.0
+  size: 9.0
 
   # Offset is the extra space around each character. `offset.y` can be thought
   # of as modifying the line spacing, and `offset.x` as modifying the letter

nix-conf/home-manager/base/alacritty.nix

@@ -25,10 +25,16 @@ in
     '';
     example = true;
   };
+  options.base.alacritty._actualConfig = myLib.mkOption {
+    type = myLib.types.attrs;
+    visible = false;
+    default = actualConfig;
+    description = "underlying default config";
+  };
 
   config.programs.alacritty = {
     enable = cfg.enable;
-    settings = actualConfig // {
+    settings = myLib.recursiveUpdate actualConfig {
       font.normal.family = cfg.font.family;
     };
   };

nix-conf/home-manager/base/mkModuleArgs.nix

@@ -3,10 +3,11 @@
 , ...
 }@inputs:
 let
-  _lib = lib // import ../../lib { inherit pkgs lib; };
+  recursiveUpdate = lib.recursiveUpdate;
+  _lib = recursiveUpdate lib (import ../../lib { inherit pkgs lib; });
 in
 # TODO: Unpollute inputs
-inputs // {
+recursiveUpdate inputs {
   proj_root = builtins.toString ./../../..;
   myLib = _lib;
 }

nix-conf/home-manager/home.nix

@@ -124,10 +124,10 @@ in
     enable = true;
     enableCompletion = true;
     enableAutosuggestions = true;
-    shellAliases = {
+    shellAliases = pkgs.lib.recursiveUpdate {
       nix-rebuild = "sudo nixos-rebuild switch";
       hm-switch = "home-manager switch --flake";
-    } // (myHome.shellAliases or { });
+    } (myHome.shellAliases or { });
     history = {
       size = 10000;
       path = "${config.xdg.dataHome}/zsh/history";

nix-conf/lib/default.nix

@@ -2,8 +2,9 @@
 , lib ? pkgs.lib
 , ... }@flake_import:
 let serde = import ./serde { inherit pkgs lib; };
+    recursiveUpdate = lib.recursiveUpdate;
 in
-pkgs.lib // lib // {
+recursiveUpdate (recursiveUpdate pkgs.lib lib) {
   fromYaml = serde.fromYaml;
   fromYamlPath = serde.fromYamlPath;
 }

nix-conf/system/configuration.nix

@@ -2,7 +2,7 @@
 let
   hostname = specialArgs.hostname;
   enableSSH = specialArgs.enableSSH or true;
-  _networking = { hostName = hostname; } // (specialArgs._networking or { });
+  _networking = lib.recursiveUpdate { hostName = hostname; } (specialArgs._networking or { });
   _boot = specialArgs._boot or { };
   _services = specialArgs._services or { };
   includeHardware = specialArgs.includeHardware or true;
@@ -63,7 +63,7 @@ with lib;
   ];
   # tailscale is mandatory : ^)
   # inherit services;
-  services = _services // {
+  services = lib.recursiveUpdate _services {
     tailscale.enable = true;
   };
   # create a oneshot job to authenticate to Tailscale
@@ -97,7 +97,7 @@ with lib;
   # Don't touch networking.firewall.enable, just configure everything else.
   # inherit networking;
   # inherit _networking;
-  networking = _networking // {
+  networking = lib.recursiveUpdate _networking {
     firewall =
       if _networking ? firewall.enable && _networking.firewall.enable then {
         trustedInterfaces = _networking.firewall.trustedInterfaces or [ ] ++ [