diff --git a/darwin/homebrew.nix b/darwin/homebrew.nix
index 789a17d..31a1958 100644
--- a/darwin/homebrew.nix
+++ b/darwin/homebrew.nix
@@ -23,7 +23,9 @@ in
   homebrew.enable = pkgs.lib.homebrew-enabled;
   homebrew.onActivation.autoUpdate = true;
   homebrew.onActivation.upgrade = true;
-  homebrew.onActivation.cleanup = "zap";
+  # TODO: open an issue to have this make backup folders?
+  # homebrew.onActivation.cleanup = "zap";
+  homebrew.onActivation.cleanup = "uninstall";
   homebrew.global.brewfile = true;
 
   homebrew.taps = [
diff --git a/flake.lock b/flake.lock
index b4b5268..712281a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -53,22 +53,6 @@
         "type": "github"
       }
     },
-    "devshell": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1667210711,
-        "narHash": "sha256-IoErjXZAkzYWHEpQqwu/DeRNJGFdR7X2OGbkhMqMrpw=",
-        "owner": "numtide",
-        "repo": "devshell",
-        "rev": "96a9dd12b8a447840cc246e17a47b81a4268bba7",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "devshell",
-        "type": "github"
-      }
-    },
     "dream2nix": {
       "inputs": {
         "alejandra": [
@@ -82,10 +66,13 @@
         "crane": "crane",
         "devshell": [
           "helix",
-          "nci",
-          "devshell"
+          "nci"
+        ],
+        "flake-parts": [
+          "helix",
+          "nci",
+          "parts"
         ],
-        "flake-parts": "flake-parts",
         "flake-utils-pre-commit": [
           "helix",
           "nci"
@@ -118,14 +105,18 @@
         "pre-commit-hooks": [
           "helix",
           "nci"
+        ],
+        "pruned-racket-catalog": [
+          "helix",
+          "nci"
         ]
       },
       "locked": {
-        "lastModified": 1671323629,
-        "narHash": "sha256-9KHTPjIDjfnzZ4NjpE3gGIVHVHopy6weRDYO/7Y3hF8=",
+        "lastModified": 1677289985,
+        "narHash": "sha256-lUp06cTTlWubeBGMZqPl9jODM99LpWMcwxRiscFAUJg=",
         "owner": "nix-community",
         "repo": "dream2nix",
-        "rev": "2d7d68505c8619410df2c6b6463985f97cbcba6e",
+        "rev": "28b973a8d4c30cc1cbb3377ea2023a76bc3fb889",
         "type": "github"
       },
       "original": {
@@ -166,24 +157,6 @@
         "type": "github"
       }
     },
-    "flake-parts": {
-      "inputs": {
-        "nixpkgs-lib": "nixpkgs-lib"
-      },
-      "locked": {
-        "lastModified": 1668450977,
-        "narHash": "sha256-cfLhMhnvXn6x1vPm+Jow3RiFAUSCw/l1utktCw5rVA4=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "d591857e9d7dd9ddbfba0ea02b43b927c3c0f1fa",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
     "flake-utils": {
       "locked": {
         "lastModified": 1676283394,
@@ -241,14 +214,15 @@
         "nixpkgs": [
           "nixpkgs"
         ],
+        "parts": "parts_2",
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1676938964,
-        "narHash": "sha256-MgHBzvniNbX3nbLu2jjsNaMTHIR+ZqEsoGWyBZTK5B4=",
+        "lastModified": 1678148451,
+        "narHash": "sha256-wUrIZHhLmj5HENyA20ErHFHfJpzi+5XhUMI7B6cv5jY=",
         "owner": "helix-editor",
         "repo": "helix",
-        "rev": "1a87d14439bc940d9bf3e66359a612b345aa363f",
+        "rev": "53c8dcea5bc2e77706a1272cf0562121005bf54f",
         "type": "github"
       },
       "original": {
@@ -267,11 +241,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1676933022,
-        "narHash": "sha256-gLghsEHOy2W2ZmSwqNOyj2mSHe9SMpdcbqnoySlZnmY=",
+        "lastModified": 1678109311,
+        "narHash": "sha256-Q64FoCH5rp3XHoC8u1+KyjLEFGTY7kX9YaIaYfugvfY=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "5e889b385c43a8a72ada5ebc4888bbebb129b438",
+        "rev": "04d6cad67557512452decbfe888c68fa11338a96",
         "type": "github"
       },
       "original": {
@@ -343,25 +317,42 @@
         "type": "github"
       }
     },
+    "mk-naked-shell": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1676572903,
+        "narHash": "sha256-oQoDHHUTxNVSURfkFcYLuAK+btjs30T4rbEUtCUyKy8=",
+        "owner": "yusdacra",
+        "repo": "mk-naked-shell",
+        "rev": "aeca9f8aa592f5e8f71f407d081cb26fd30c5a57",
+        "type": "github"
+      },
+      "original": {
+        "owner": "yusdacra",
+        "repo": "mk-naked-shell",
+        "type": "github"
+      }
+    },
     "nci": {
       "inputs": {
-        "devshell": "devshell",
         "dream2nix": "dream2nix",
+        "mk-naked-shell": "mk-naked-shell",
         "nixpkgs": [
           "helix",
           "nixpkgs"
         ],
+        "parts": "parts",
         "rust-overlay": [
           "helix",
           "rust-overlay"
         ]
       },
       "locked": {
-        "lastModified": 1671430291,
-        "narHash": "sha256-UIc7H8F3N8rK72J/Vj5YJdV72tvDvYjH+UPsOFvlcsE=",
+        "lastModified": 1677297103,
+        "narHash": "sha256-ArlJIbp9NGV9yvhZdV0SOUFfRlI/kHeKoCk30NbSiLc=",
         "owner": "yusdacra",
         "repo": "nix-cargo-integration",
-        "rev": "b1b0d38b8c3b0d0e6a38638d5bbe10b0bc67522c",
+        "rev": "a79272a2cb0942392bb3a5bf9a3ec6bc568795b2",
         "type": "github"
       },
       "original": {
@@ -372,11 +363,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1676899837,
-        "narHash": "sha256-4eToXII90JdIVLk+H33vmPaYs/lIZacc80cN+oOYOf4=",
+        "lastModified": 1678086707,
+        "narHash": "sha256-y1uXdxzinIne4FW3TF7DCtxEB9gAbQ4qnbpYzhvkFm8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "70414d340baab99231000e4af02ec812e7d0c17b",
+        "rev": "21eda9bc80bef824a037582b1e5a43ba74e92daa",
         "type": "github"
       },
       "original": {
@@ -389,11 +380,11 @@
     "nixpkgs-lib": {
       "locked": {
         "dir": "lib",
-        "lastModified": 1665349835,
-        "narHash": "sha256-UK4urM3iN80UXQ7EaOappDzcisYIuEURFRoGQ/yPkug=",
+        "lastModified": 1675183161,
+        "narHash": "sha256-Zq8sNgAxDckpn7tJo7V1afRSk2eoVbu3OjI1QklGLNg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "34c5293a71ffdb2fe054eb5288adc1882c1eb0b1",
+        "rev": "e1e1b192c1a5aab2960bf0a0bd53a2e8124fa18e",
         "type": "github"
       },
       "original": {
@@ -406,11 +397,11 @@
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1676947002,
-        "narHash": "sha256-swZnrsFnGxBW5CnTqQIsD2pgFWVh817r4kDtbP8Pu38=",
+        "lastModified": 1678144297,
+        "narHash": "sha256-JhyIRENtFteoDctaGh3INI1RmDPKY++x0z7gml74tCg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a1970c010db531ccc21b742079d7dff5d4fb1842",
+        "rev": "33c9fd85e52f925e05f4a6bd69811f97e5ccdc15",
         "type": "github"
       },
       "original": {
@@ -422,11 +413,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1676817468,
-        "narHash": "sha256-ovuJ1jQOC2/EEibufBkXmSN/O9mLx80Wh7aDmHmHAhA=",
+        "lastModified": 1678101631,
+        "narHash": "sha256-vuuvWBNGhNSPPbFCjp2XZmBqJOvsFF1T0hyleRnHZlc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0cf4274b5d06325bd16dbf879a30981bc283e58a",
+        "rev": "934e613c31cf7af0624dcf088b9e2d9b802d0717",
         "type": "github"
       },
       "original": {
@@ -436,6 +427,46 @@
         "type": "github"
       }
     },
+    "parts": {
+      "inputs": {
+        "nixpkgs-lib": [
+          "helix",
+          "nci",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1675933616,
+        "narHash": "sha256-/rczJkJHtx16IFxMmAWu5nNYcSXNg1YYXTHoGjLrLUA=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "47478a4a003e745402acf63be7f9a092d51b83d7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "parts_2": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1675933616,
+        "narHash": "sha256-/rczJkJHtx16IFxMmAWu5nNYcSXNg1YYXTHoGjLrLUA=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "47478a4a003e745402acf63be7f9a092d51b83d7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
     "pre-commit": {
       "inputs": {
         "flake-compat": "flake-compat",
@@ -451,11 +482,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1676879534,
-        "narHash": "sha256-HU4RXcwsAX1u7AUbGOBDxkYQkeODcn+HZjXqKa1y/hk=",
+        "lastModified": 1677832802,
+        "narHash": "sha256-XQf+k6mBYTiQUjWRf/0fozy5InAs03O1b30adCpWeXs=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "c9495f017f67a11e9c9909b032dc7762dfc853cf",
+        "rev": "382bee738397ca005206eefa36922cc10df8a21c",
         "type": "github"
       },
       "original": {
@@ -491,11 +522,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1671416426,
-        "narHash": "sha256-kpSH1Jrxfk2qd0pRPJn1eQdIOseGv5JuE+YaOrqU9s4=",
+        "lastModified": 1677292251,
+        "narHash": "sha256-D+6q5Z2MQn3UFJtqsM5/AvVHi3NXKZTIMZt1JGq/spA=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "fbaaff24f375ac25ec64268b0a0d63f91e474b7d",
+        "rev": "34cdbf6ad480ce13a6a526f57d8b9e609f3d65dc",
         "type": "github"
       },
       "original": {
diff --git a/home/programs.nix b/home/programs.nix
index 4e66585..7df42e1 100644
--- a/home/programs.nix
+++ b/home/programs.nix
@@ -42,7 +42,6 @@
   # Other packages ----------------------------------------------------------------------------- {{{
 
   home.packages = builtins.attrValues ({
-    coreutils = pkgs.coreutils.override { withPrefix = true; singleBinary = "shebangs"; };
     inherit (pkgs)
       # GUI apps
       discord-ptb