diff --git a/home-nix/flake.lock b/home-nix/flake.lock
index 397a9ec..4849cac 100644
--- a/home-nix/flake.lock
+++ b/home-nix/flake.lock
@@ -30,6 +30,21 @@
         "type": "github"
       }
     },
+    "flake-utils_3": {
+      "locked": {
+        "lastModified": 1659877975,
+        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -101,12 +116,48 @@
         "type": "github"
       }
     },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1665296151,
+        "narHash": "sha256-uOB0oxqxN9K7XGF1hcnY+PQnlQJ+3bP2vCn/+Ru/bbc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "14ccaaedd95a488dd7ae142757884d8e125b3363",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
         "home-manager": "home-manager",
         "nixgl": "nixgl",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs_2",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": "flake-utils_3",
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1667943215,
+        "narHash": "sha256-FSD8RIL85Kbq3wVzxzYPuWkXtNaW/HldGpVVRDoPpnY=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "01a89f997e49dd624c7f94813feceda63e91ee2e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
       }
     },
     "utils": {
diff --git a/home-nix/flake.nix b/home-nix/flake.nix
index 6760469..4972a3c 100644
--- a/home-nix/flake.nix
+++ b/home-nix/flake.nix
@@ -8,14 +8,20 @@
     };
     flake-utils.url = "github:numtide/flake-utils";
     nixgl.url = "github:guibou/nixGL";
+    rust-overlay.url = "github:oxalica/rust-overlay";
   };
 
-  outputs = { nixpkgs, home-manager, nixgl, ... }:
+  outputs = { nixpkgs, home-manager, nixgl, rust-overlay, flake-utils, ... }:
     let
       system = "x86_64-linux";
-      pkgs = nixpkgs.legacyPackages.${system}.appendOverlays [nixgl.overlay];
+      overlays = [ nixgl.overlay rust-overlay.overlays.default ];
+      # pkgs = nixpkgs.legacyPackages.${system}.appendOverlays overlays;
+      pkgs = import nixpkgs { inherit system overlays; };
+      lib = (import ../lib-nix { inherit pkgs; lib = pkgs.lib; });
     in
-    {
+    rec {
+      inherit pkgs;
+      inherit lib;
       homeConfigurations.nixos = home-manager.lib.homeManagerConfiguration {
         inherit pkgs;
         modules = [
@@ -25,6 +31,7 @@
         # we migrate this from in-place modules to allow flexibility
         # in this case, we can add "home" to input arglist of home.nix
         extraSpecialArgs = {
+          inherit lib;
           myHome = {
             username = "nixos";
             homeDirectory = "/home/nixos";
@@ -37,6 +44,7 @@
           ./home.nix
         ];
         extraSpecialArgs = {
+          # inherit lib;
           myHome = {
             username = "ubuntu_admin";
             homeDirectory = "/home/ubuntu_admin";
@@ -49,10 +57,11 @@
           ./home.nix
         ];
         extraSpecialArgs = {
+          # inherit lib;
           myHome = {
             username = "hwtr";
             homeDirectory = "/home/hwtr";
-            packages = [pkgs.nixgl.nixGLIntel];
+            packages = [ pkgs.nixgl.nixGLIntel ];
             shellAliases = {
               nixGL = "nixGLIntel";
             };
diff --git a/home-nix/fromYamlSandbox/flake.lock b/home-nix/fromYamlSandbox/flake.lock
new file mode 100644
index 0000000..65e798e
--- /dev/null
+++ b/home-nix/fromYamlSandbox/flake.lock
@@ -0,0 +1,44 @@
+{
+  "nodes": {
+    "from-yaml": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1667993008,
+        "narHash": "sha256-X5RWyebq+j56mUGGCmZTVcJBy6Y/QgFEMHklaz+GOt0=",
+        "owner": "pegasust",
+        "repo": "fromYaml",
+        "rev": "23d2616051f5a781dcfe2915a526925fd9cdd08c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "pegasust",
+        "repo": "fromYaml",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1667811565,
+        "narHash": "sha256-HYml7RdQPQ7X13VNe2CoDMqmifsXbt4ACTKxHRKQE3Q=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "667e5581d16745bcda791300ae7e2d73f49fff25",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "from-yaml": "from-yaml",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/home-nix/fromYamlSandbox/flake.nix b/home-nix/fromYamlSandbox/flake.nix
new file mode 100644
index 0000000..c097de7
--- /dev/null
+++ b/home-nix/fromYamlSandbox/flake.nix
@@ -0,0 +1,22 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    from-yaml ={
+      url = "github:pegasust/fromYaml";
+      flake = false;
+    };
+  };
+  outputs = {nixpkgs,from-yaml, ...}: let
+    system = "x86_64-linux";
+    pkgs = import nixpkgs {inherit system;};
+    lib = {
+        fromYaml = import "${from-yaml}/fromYaml.nix" {lib = pkgs.lib;};
+    };
+  in {
+    inherit nixpkgs;
+    inherit from-yaml;
+    inherit lib;
+    fromYamlFn = lib.fromYaml;
+  };
+}
+
diff --git a/home-nix/home.nix b/home-nix/home.nix
index 180abd3..f9f16ee 100644
--- a/home-nix/home.nix
+++ b/home-nix/home.nix
@@ -1,5 +1,10 @@
 # myHome is injected from extraSpecialArgs in flake.nix
-{ config, pkgs, myHome, ... }:
+{ config
+, pkgs
+, myHome
+# , lib
+, ...
+}:
 {
   home = {
     username = myHome.username;
@@ -7,12 +12,17 @@
     stateVersion = myHome.stateVersion or "22.05";
   };
   home.packages = [
-    pkgs.htop pkgs.ripgrep pkgs.gcc pkgs.fd pkgs.zk pkgs.unzip 
-    pkgs.rustc pkgs.cargo 
-    pkgs.nodejs-18_x 
+    pkgs.htop
+    pkgs.ripgrep
+    pkgs.gcc
+    pkgs.fd
+    pkgs.zk
+    pkgs.unzip
+    pkgs.rust-bin.nightly.latest.default
+    pkgs.nodejs-18_x
     pkgs.rust-analyzer
     pkgs.stdenv.cc.cc.lib
-  ] ++ (myHome.packages or []);
+  ] ++ (myHome.packages or [ ]);
   nixpkgs.config.allowUnfree = true;
 
   ## Configs ## 
@@ -22,6 +32,7 @@
   ## Programs ##
   programs.alacritty = myHome.programs.alacritty or {
     enable = true;
+    # settings = lib.fromYaml builtins.readFile ../alacritty/alacritty.yml;
   };
   programs.direnv = {
     enable = true;
@@ -61,7 +72,7 @@
     shellAliases = {
       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";
@@ -75,13 +86,16 @@
     enable = true;
     lfs.enable = true;
     aliases = {
-      a="add"; c="commit"; ca="commit --ammend"; cm="commit -m";
-      lol="log --graph --decorate --pretty=oneline --abbrev-commit";
-      lola="log --graph --decorate --pretty=oneline --abbrev-commit --all";
-      sts="status";
+      a = "add";
+      c = "commit";
+      ca = "commit --ammend";
+      cm = "commit -m";
+      lol = "log --graph --decorate --pretty=oneline --abbrev-commit";
+      lola = "log --graph --decorate --pretty=oneline --abbrev-commit --all";
+      sts = "status";
     };
     extraConfig = {
-      merge = {tool="vimdiff"; conflictstyle="diff3";};
+      merge = { tool = "vimdiff"; conflictstyle = "diff3"; };
     };
     # why is this no longer valid?
     # pull = { rebase=true; };
diff --git a/lib-nix/default.nix b/lib-nix/default.nix
new file mode 100644
index 0000000..15541e9
--- /dev/null
+++ b/lib-nix/default.nix
@@ -0,0 +1,4 @@
+{pkgs, lib, ...}@flake_import: 
+{
+    fromYaml = import ./fromYaml/fromYaml.nix {inherit lib;};
+}
diff --git a/lib-nix/fromYaml b/lib-nix/fromYaml
new file mode 160000
index 0000000..f31858f
--- /dev/null
+++ b/lib-nix/fromYaml
@@ -0,0 +1 @@
+Subproject commit f31858f94e3f05d4982754eab0e1f427d1ca2497