Avoid affinity warnings for ag

flake.lock

@@ -266,22 +266,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-screen": {
-      "locked": {
-        "lastModified": 1737753705,
-        "narHash": "sha256-fQeXAeNQrsEUH3fd6RTjN/W+8flJiAFHo7Eya2RT87M=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "e518d4ad2bcad74f98fec028cf21ce5b1e5020dd",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "e518d4ad2bcad74f98fec028cf21ce5b1e5020dd",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "darwin": "darwin",
@@ -291,7 +275,6 @@
         "jail-nix": "jail-nix",
         "nix-homebrew": "nix-homebrew",
         "nixpkgs": "nixpkgs",
-        "nixpkgs-screen": "nixpkgs-screen",
         "systems": "systems_2",
         "vscode-server": "vscode-server"
       }

flake.nix

@@ -3,11 +3,6 @@
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
-    # too many issues with screen 5.0
-    # - load average in status broken
-    # - background colors in programs (eg less) not showing
-    # - caption and hardstatus color lacks intensity
-    nixpkgs-screen.url = "github:NixOS/nixpkgs/e518d4ad2bcad74f98fec028cf21ce5b1e5020dd";
     systems.url = "github:nix-systems/default";
     home-manager = {
       url = "github:nix-community/home-manager";
@@ -115,9 +110,6 @@
           specialArgs = {
             inherit trustedSSHKeys;
             inherit (inputs) jail-nix;
-            pkgs-screen = import inputs.nixpkgs-screen {
-              inherit system;
-            };
           };
           modules = [
             inputs.fw_nix.nixosModules.nix-gc

hosts/deimos/nixos.nix

@@ -1,7 +1,6 @@
 {
   modulesPath,
   pkgs,
-  pkgs-screen,
   trustedSSHKeys,
   jail-nix,
   ...
@@ -93,7 +92,6 @@ in
   environment.systemPackages = with pkgs; [
     # TODO: clean this up against artem@deimos
     git
-    pkgs-screen.screen
     sshfs
 
     # https://unix.stackexchange.com/questions/651165/using-systemd-to-mount-remote-filesystems-in-user-bus

migrated/.zshrc

@@ -8,9 +8,9 @@ export PATH="${HOME}/bin:${PATH}"
 # Since we exec right afterwards, there's no point in setting this shell up.
 if [[ -o login ]]; then
 	[ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && \
-		[ -z "$STY" ] && \
-		which screen 2>/dev/null && \
-		exec screen -URR
+		[ -z "$TMUX" ] && \
+		command -v tmux >/dev/null && \
+		exec tmux new -A -D -s main
 fi
 
 HISTFILE=~/.zsh_history
@@ -62,7 +62,7 @@ alias grep='grep --line-buffered --color=auto'
 alias ipt='iptables -nvL --line-numbers'
 alias ip6t='ip6tables -nvL --line-numbers'
 alias tcpdump='tcpdump -l'
-alias ag='ag -C 2 --pager="$PAGER" --smart-case'
+alias ag='ag -C 2 --noaffinity --pager="$PAGER" --smart-case'
 alias mysql='mysql --select_limit=1000'
 alias logcat='adb logcat -v "color printable usec year zone" -T 10'
 alias readelf='readelf -W'

modules/home/common.nix

@@ -82,5 +82,59 @@
     };
   };
 
+  programs.tmux = {
+    enable = true;
+    shortcut = "a"; # ^a
+    escapeTime = 0;
+    historyLimit = 10240;
+
+    # hjkl HJKL and mouse to switch between and resize panels.
+    mouse = true;
+    keyMode = "vi";
+    customPaneNavigationAndResize = true;
+
+    extraConfig = ''
+      set-environment -g SSH_AUTH_SOCK $HOME/.ssh/ssh_auth_sock
+
+      # Instead of flashing or beeping, blink the window in status.
+      set -g visual-bell off
+      set -g monitor-activity on
+      set -g bell-action none
+      set -g window-status-activity-style "fg=yellow,blink"
+
+      # Requires support from terminal (e.g. iTerm2).
+      set -s set-clipboard on
+
+      # For scrolling through logs.
+      bind y set-window-option synchronize-panes
+
+      # Panel configuration.
+      bind | split-window -h -c "#{pane_current_path}"
+      bind - split-window -v -c "#{pane_current_path}"
+      bind Enter resize-pane -Z
+
+      # Navigation.
+      bind -n M-Up new-window -c "#{pane_current_path}"
+      bind -n M-Down confirm-before -p "kill-window #W? (y/n)" kill-window
+      bind -n M-Left previous-window
+      bind -n M-Right next-window
+
+      # Status bar.
+      set -g status-interval 5
+      set -g status-position bottom
+      set -g status-style "bg=default,fg=white"
+
+      set -g status-left-length 20
+      set -g status-left "#[fg=green,bold]#H #[fg=white]| "
+
+      set -g status-right-length 60
+      set -g status-right "#[fg=cyan]%H:%M %d.%m.%Y #[fg=white]| #[fg=yellow]Load: #(cut -d ' ' -f 1-3 /proc/loadavg)"
+
+      set -g status-justify left
+      set -g window-status-format "#[fg=white,dim]#I:#W#F"
+      set -g window-status-current-format "#[fg=white,bold,bg=blue] #I:#W#F "
+    '';
+  };
+
   home.stateVersion = "25.11"; # never modify
 }