Switch to home manager and move off of ohmyzsh

nix/flake.lock

@@ -35,6 +35,26 @@
         "type": "github"
       }
     },
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1733175814,
+        "narHash": "sha256-zFOtOaqjzZfPMsm1mwu98syv3y+jziAq5DfWygaMtLg=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "bf23fe41082aa0289c209169302afd3397092f22",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
     "nix-darwin": {
       "inputs": {
         "nixpkgs": [
@@ -42,11 +62,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1732603785,
-        "narHash": "sha256-AEjWTJwOmSnVYsSJCojKgoguGfFfwel6z/6ud6UFMU8=",
+        "lastModified": 1733047432,
+        "narHash": "sha256-fQUKxgxAEHlL5bevRkdsQB7sSpAMhlvxf7Zw0KK8QIg=",
         "owner": "LnL7",
         "repo": "nix-darwin",
-        "rev": "6ab87b7c84d4ee873e937108c4ff80c015a40c7a",
+        "rev": "e30a3622b606dffc622305b4bbe1cfe37e78fa40",
         "type": "github"
       },
       "original": {
@@ -125,11 +145,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1732238832,
-        "narHash": "sha256-sQxuJm8rHY20xq6Ah+GwIUkF95tWjGRd1X8xF+Pkk38=",
+        "lastModified": 1733024928,
+        "narHash": "sha256-n/DOfpKH1vkukuBnach91QBQId2dr5tkE7/7UrkV2zw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8edf06bea5bcbee082df1b7369ff973b91618b8d",
+        "rev": "2c27ab2e60502d1ebb7cf38909de38663f762a79",
         "type": "github"
       },
       "original": {
@@ -141,6 +161,7 @@
     },
     "root": {
       "inputs": {
+        "home-manager": "home-manager",
         "nix-darwin": "nix-darwin",
         "nix-homebrew": "nix-homebrew",
         "nixpkgs": "nixpkgs_3"