create backports

modules/backports.nix

@@ -0,0 +1,25 @@
+{ pkgs, ... }:
+{
+  nixpkgs.overlays = [
+
+    (self: super: {
+      powerline-go = pkgs.callPackage
+        (pkgs.fetchurl {
+          url = "https://raw.githubusercontent.com/NixOS/nixpkgs/31106c85cb1dc50755f9dd41244575332b6b64c2/pkgs/tools/misc/powerline-go/default.nix";
+          sha256 = "1ikm7s0g00bkfagc5f2fwlgc050cb6p4pprdg3f6s8j4ri927970";
+        })
+        { };
+    })
+
+    (self: super: {
+      brave = super.brave.overrideAttrs (b: rec {
+        version = "1.18.75";
+        src = pkgs.fetchurl {
+          url = "https://github.com/brave/brave-browser/releases/download/v${version}/brave-browser_${version}_amd64.deb";
+          sha256 = "1njgdw7ml30xs517brc7z7piy6lcylrfjhz6wn1dp7gywsxfgx1h";
+        };
+      });
+    })
+
+  ];
+}

modules/baseline.nix

@@ -1,5 +1,7 @@
 { config, pkgs, lib, ... }:
 {
+  imports = [ ./backports.nix ];
+
   time.timeZone = "US/Eastern";
 
   boot = {

modules/cli.nix

@@ -76,12 +76,6 @@ in
   environment.variables.PLGO_HOSTNAMEFG = "0";
   environment.variables.PLGO_HOSTNAMEBG = "114";
 
-  nixpkgs.overlays = [
-    (self: super: {
-      powerline-go = pkgs.callPackage ../pkgs/powerline-go-updated { };
-    })
-  ];
-
   programs.tmux = {
     enable = true;
     terminal = "screen-256color";

pkgs/powerline-go-updated/default.nix

@@ -1,24 +0,0 @@
-{ stdenv, buildGoModule, fetchFromGitHub }:
-
-buildGoModule rec {
-  pname = "powerline-go";
-  version = "1.18.0";
-
-  src = fetchFromGitHub {
-    owner = "justjanne";
-    repo = pname;
-    rev = "v${version}";
-    sha256 = "0dni842xzc8r6wbdfax25940jvxp69zk8xklczkjmyxqawvsxnjh";
-  };
-
-  vendorSha256 = "0dkgp9vlb76la0j439w0rb548qg5v8648zryk3rqgfhd4qywlk11";
-
-  doCheck = false;
-
-  meta = with stdenv.lib; {
-    description = "A Powerline like prompt for Bash, ZSH and Fish";
-    license = licenses.gpl3;
-    platforms = platforms.unix;
-    maintainers = with maintainers; [ sifmelcara ];
-  };
-}