diff --git a/flake.lock b/flake.lock
index 5ef786f..cc44189 100644
--- a/flake.lock
+++ b/flake.lock
@@ -43,6 +43,28 @@
         "type": "github"
       }
     },
+    "devshell": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixvim",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1708939976,
+        "narHash": "sha256-O5+nFozxz2Vubpdl1YZtPrilcIXPcRAjqNdNE8oCRoA=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "5ddecd67edbd568ebe0a55905273e56cc82aabe3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -97,11 +119,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1706830856,
-        "narHash": "sha256-a0NYyp+h9hlb7ddVz4LUn1vT/PLwqfrWYcHMvFB1xYg=",
+        "lastModified": 1709336216,
+        "narHash": "sha256-Dt/wOWeW6Sqm11Yh+2+t0dfEWxoMxGBvv3JpIocFl9E=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "b253292d9c0a5ead9bc98c4e9a26c6312e27d69f",
+        "rev": "f7b3c975cf067e56e7cda6cb098ebe3fb4d74ca2",
         "type": "github"
       },
       "original": {
@@ -128,6 +150,24 @@
         "type": "github"
       }
     },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_3"
+      },
+      "locked": {
+        "lastModified": 1701680307,
+        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
@@ -178,11 +218,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1708988456,
-        "narHash": "sha256-RCz7Xe64tN2zgWk+MVHkzg224znwqknJ1RnB7rVqUWw=",
+        "lastModified": 1709756385,
+        "narHash": "sha256-EwAsCWfjLnq6Rzh9c95ThPhTTOQkY/R9ZROPUfhtHmE=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "1d085ea4444d26aa52297758b333b449b2aa6fca",
+        "rev": "ad9254cd9af9165000ecd6ef9c23c2b8ceda01c7",
         "type": "github"
       },
       "original": {
@@ -199,11 +239,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1708988456,
-        "narHash": "sha256-RCz7Xe64tN2zgWk+MVHkzg224znwqknJ1RnB7rVqUWw=",
+        "lastModified": 1709578243,
+        "narHash": "sha256-hF96D+c2PBmAFhymMw3z8hou++lqKtZ7IzpFbYeL1/Y=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "1d085ea4444d26aa52297758b333b449b2aa6fca",
+        "rev": "23ff9821bcaec12981e32049e8687f25f11e5ef3",
         "type": "github"
       },
       "original": {
@@ -220,11 +260,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1709001452,
-        "narHash": "sha256-FnZ54wkil54hKvr1irdKic1TE27lHQI9dKQmOJRrtlU=",
+        "lastModified": 1709554374,
+        "narHash": "sha256-1yYgwxBzia+QrOaQaZ6YKqGFfiQcSBwYLzd9XRsRLQY=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "6c06334f0843c7300d1678726bb607ce526f6b36",
+        "rev": "daa03606dfb5296a22e842acb02b46c1c4e9f5e7",
         "type": "github"
       },
       "original": {
@@ -241,11 +281,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1709132521,
-        "narHash": "sha256-IVZKVM+7JpMcCorGLGqT1gjniAMeDVjJ7Bt8gs+UDhs=",
+        "lastModified": 1709737311,
+        "narHash": "sha256-sBpgwrEg2svZD8LN+QeJgUAVf1+7MH4+JPgISN3Ihzk=",
         "owner": "doronbehar",
         "repo": "nix-matlab",
-        "rev": "960fb02c8883584a1917ac5d49321bcb1ca43067",
+        "rev": "9ff67d0f7a045b350178a9e04de9b6469dea5c82",
         "type": "gitlab"
       },
       "original": {
@@ -256,11 +296,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1709147990,
-        "narHash": "sha256-vpXMWoaCtMYJ7lisJedCRhQG9BSsInEyZnnG5GfY9tQ=",
+        "lastModified": 1709410583,
+        "narHash": "sha256-esOSUoQ7mblwcsSea0K17McZuwAIjoS6dq/4b83+lvw=",
         "owner": "NixOs",
         "repo": "nixos-hardware",
-        "rev": "33a97b5814d36ddd65ad678ad07ce43b1a67f159",
+        "rev": "59e37017b9ed31dee303dbbd4531c594df95cfbc",
         "type": "github"
       },
       "original": {
@@ -288,11 +328,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1708984720,
-        "narHash": "sha256-gJctErLbXx4QZBBbGp78PxtOOzsDaQ+yw1ylNQBuSUY=",
+        "lastModified": 1709479366,
+        "narHash": "sha256-n6F0n8UV6lnTZbYPl1A9q1BS0p4hduAv1mGAP17CVd0=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "13aff9b34cc32e59d35c62ac9356e4a41198a538",
+        "rev": "b8697e57f10292a6165a20f03d2f42920dfaf973",
         "type": "github"
       },
       "original": {
@@ -304,6 +344,7 @@
     },
     "nixvim": {
       "inputs": {
+        "devshell": "devshell",
         "flake-compat": "flake-compat_2",
         "flake-parts": "flake-parts",
         "home-manager": "home-manager_3",
@@ -314,11 +355,11 @@
         "pre-commit-hooks": "pre-commit-hooks"
       },
       "locked": {
-        "lastModified": 1709118025,
-        "narHash": "sha256-IwzgIAKHJI+qcno0pExTOfhqKgHzA5vc++gfgJ0ZCok=",
+        "lastModified": 1709740068,
+        "narHash": "sha256-Oii3MYcyi2K2o6/4rA3hetOpxCZ+IrBYegLA951s29s=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "8bb460e261dd0fd8ac3f544f8a2a28ad64616cbe",
+        "rev": "ffe8978028e17fd861723bcbf99de8314e7bd88c",
         "type": "github"
       },
       "original": {
@@ -329,11 +370,11 @@
     },
     "nur": {
       "locked": {
-        "lastModified": 1709149455,
-        "narHash": "sha256-8eLbBMcBoaEQUxlI5MoBBVgk8nCVHl8jWfg6nkZnsFY=",
+        "lastModified": 1709753689,
+        "narHash": "sha256-6HQJQ+LFmqqHukeGSq0d/NeA7dSsPQGcfaXc/kRkNDI=",
         "owner": "nix-community",
         "repo": "nur",
-        "rev": "fc9e8ef9cea57baa3669766b78e3236207df39ba",
+        "rev": "95082a571b70231e56db5070dcdf675356da7b52",
         "type": "github"
       },
       "original": {
@@ -345,7 +386,7 @@
     "pre-commit-hooks": {
       "inputs": {
         "flake-compat": "flake-compat_3",
-        "flake-utils": "flake-utils",
+        "flake-utils": "flake-utils_2",
         "gitignore": "gitignore",
         "nixpkgs": [
           "nixvim",
@@ -410,6 +451,21 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "systems_3": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/users/tacocat/neovim/default.nix b/users/tacocat/neovim/default.nix
index 0fe8f60..abd81fd 100644
--- a/users/tacocat/neovim/default.nix
+++ b/users/tacocat/neovim/default.nix
@@ -53,8 +53,8 @@
           right = "";
         };
         componentSeparators = {
-          left = "╱";
-          right = "╲";
+          left = "•";
+          right = "•";
         };
       };
       lsp = {
diff --git a/users/tacocat/programs/firefox.nix b/users/tacocat/programs/firefox.nix
index c85a3d9..c30be6b 100644
--- a/users/tacocat/programs/firefox.nix
+++ b/users/tacocat/programs/firefox.nix
@@ -71,7 +71,7 @@
         };
         search = {
           force = true;
-          default = "Catgirl";
+          default = "Celtic Lite";
           engines = {
             "Nix Packages" = {
               urls = [