diff --git a/extras/dev.nix b/extras/dev.nix
index 9893802..6c57d0e 100644
--- a/extras/dev.nix
+++ b/extras/dev.nix
@@ -158,18 +158,8 @@
     services.udev.extraRules = ''
         SUBSYSTEM == "tty", GROUP="dialout", ATTRS{interface}=="Black Magic GDB Server", SYMLINK+="ttyBmpGdb"
         SUBSYSTEM == "tty", GROUP="dialout", ATTRS{interface}=="Black Magic UART Port",  SYMLINK+="ttyBmpTarg"
-
-        # mobili
-        KERNEL=="js[0-9]*", MODE="0666"
     '';
 
-    boot.kernel.sysctl = {
-        "net.core.rmem_max" = 67108864;
-        "net.core.wmem_max" = 67108864;
-        "net.core.rmem_max_default" = 67108864;
-        "net.core.wmem_max_default" = 67108864;
-    };
-
     virtualisation.docker = {
         daemon.settings = {
             features.buildkit = true;
diff --git a/flake.lock b/flake.lock
index 07dd841..79427b4 100644
--- a/flake.lock
+++ b/flake.lock
@@ -169,11 +169,11 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1778551011,
-        "narHash": "sha256-woJV7tJwwzjR0xWDNuGpwMENe/OEMAdSGg+nqWs9tUE=",
+        "lastModified": 1778169829,
+        "narHash": "sha256-p9CY3iCpTIzIDAnGv6cp+/ckRqs1G5wFSZcUtiEaM6Y=",
         "owner": "helix-editor",
         "repo": "helix",
-        "rev": "8c41b11607924f7584b77c8a6e6b16439a2f559f",
+        "rev": "7d92fbdadf3cdadd5d0d1e27c234c10b74c6613c",
         "type": "github"
       },
       "original": {
@@ -210,11 +210,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1778681890,
-        "narHash": "sha256-RK4sTgei29wBzLu+e4ljeixKutWhbMygFsdxdFKpZOU=",
+        "lastModified": 1778144356,
+        "narHash": "sha256-dGM+QCstz/DyLB68+JK5GWyMx4QSqmOJEVgZmy63d/g=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "7654d90b94bab7eba3a52fd6f73b3f5a4c544fa2",
+        "rev": "e4419d3123b780d5f4c0bceeace450424387638c",
         "type": "github"
       },
       "original": {
@@ -288,11 +288,11 @@
     },
     "nixos": {
       "locked": {
-        "lastModified": 1778430510,
-        "narHash": "sha256-Ti+ZBvW6yrWWAg2szExVTwCd4qOJ3KlVr1tFHfyfi8Q=",
+        "lastModified": 1778003029,
+        "narHash": "sha256-q/nkKLDtHIyLjZpKhWk3cSK5IYsFqtMd6UtXF3ddjgA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8fd9daa3db09ced9700431c5b7ad0e8ba199b575",
+        "rev": "0c88e1f2bdb93d5999019e99cb0e61e1fe2af4c5",
         "type": "github"
       },
       "original": {
@@ -319,11 +319,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1778593042,
-        "narHash": "sha256-xYGrSg6354UK2K4WSQd4+TfyvfqmvFbSY+ZtGQUXK0c=",
+        "lastModified": 1778143761,
+        "narHash": "sha256-lkesY6x2X2qxlqLM7CT2iM/0rP2JB7fruPN3h8POXmI=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "9bd7c80d43e258aaa607d83b43661df11444d808",
+        "rev": "3bcaa367d4c550d687a17ac792fd5cda214ee871",
         "type": "github"
       },
       "original": {
@@ -427,11 +427,11 @@
     },
     "nixpkgs_4": {
       "locked": {
-        "lastModified": 1778443072,
-        "narHash": "sha256-zi7/fsqM/kFdNuED//4WOCUtezGtKKqRNORjMvfwjnA=",
+        "lastModified": 1777954456,
+        "narHash": "sha256-hGdgeU2Nk87RAuZyYjyDjFL6LK7dAZN5RE9+hrDTkDU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "da5ad661ba4e5ef59ba743f0d112cbc30e474f32",
+        "rev": "549bd84d6279f9852cae6225e372cc67fb91a4c1",
         "type": "github"
       },
       "original": {
@@ -501,11 +501,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1778585655,
-        "narHash": "sha256-yfxy9aTlIgU2Z36H8cJURgYLgjT4qvFeOzoAC/HXcKM=",
+        "lastModified": 1778218381,
+        "narHash": "sha256-mhxT7KkmM0h/vgr84o2p6gkzm21b5/dCnIMVKaoXU+I=",
         "owner": "0xc000022070",
         "repo": "zen-browser-flake",
-        "rev": "42f41abcef13dc81c85407b57aa1fd1bde46e46c",
+        "rev": "ea79f20a194de74504821ab53e93c0cf92690f00",
         "type": "github"
       },
       "original": {
diff --git a/users/tao/helix.nix b/users/tao/helix.nix
index b7b4390..ba326a4 100644
--- a/users/tao/helix.nix
+++ b/users/tao/helix.nix
@@ -251,11 +251,6 @@
                 # keep-sorted end
             ];
             language-server = {
-                nil = {
-                    config = {
-                        autoArchive = true;
-                    };
-                };
                 deno-lsp = {
                     command = "deno";
                     args = ["lsp"];
diff --git a/users/tao/nushell/completions/completions-docker.nu b/users/tao/nushell/completions/completions-docker.nu
deleted file mode 100644
index e8e02cc..0000000
--- a/users/tao/nushell/completions/completions-docker.nu
+++ /dev/null
@@ -1,7 +0,0 @@
-export def "nu-complete docker start" [] {
-  docker ps --all --format json | from json --objects | select Names Image | rename value description
-}
-
-export extern "docker start" [
-  ...recipe: string@"nu-complete docker start"
-]
diff --git a/users/tao/nushell/config.nu b/users/tao/nushell/config.nu
index 23b2d54..0c08cc8 100644
--- a/users/tao/nushell/config.nu
+++ b/users/tao/nushell/config.nu
@@ -12,7 +12,6 @@ use tailscale.nu *
 
 source completions-jj.nu
 source completions-just.nu
-source completions-docker.nu
 
 # External completer example
 # let carapace_completer = {|spans|
diff --git a/users/tao/nushell/extras/tailscale.nu b/users/tao/nushell/extras/tailscale.nu
index 83eb48a..fa8e8d9 100644
--- a/users/tao/nushell/extras/tailscale.nu
+++ b/users/tao/nushell/extras/tailscale.nu
@@ -13,7 +13,7 @@ export def check-mullvad [] {
 }
 
 # switch to a specific exit node, or none
-export def te [exit_node: string = "", -n] {
+export def te [exit_node: string = ""] {
   if ($exit_node | is-empty) and (ps | find deluge | is-not-empty) {
     print "stop summoning first!"
     return false
@@ -21,7 +21,7 @@ export def te [exit_node: string = "", -n] {
 
   tailscale set --exit-node $exit_node
 
-  if ($exit_node | is-not-empty) or not $n {
+  if ($exit_node | is-not-empty) {
     check-mullvad
   } else {
     print "exit node set"