feat: port the tmux config

156-line .tmux.conf plus tpm plugins existed only on the ubuntu box.
Plugins are declared instead of git-cloned at runtime by tpm.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

home/common/programs/tmux.conf

@@ -0,0 +1,148 @@
+# Set prefix to Ctrl-a (more ergonomic than Ctrl-b)
+set -g prefix C-a
+unbind C-b
+bind C-a send-prefix
+
+# Enable mouse support
+set -g mouse on
+
+# Start windows and panes at 1, not 0
+set -g base-index 1
+setw -g pane-base-index 1
+
+# Renumber windows when one is closed
+set -g renumber-windows on
+
+# Increase scrollback buffer
+set -g history-limit 50000
+
+# Low escape-time (0 breaks Alt keys over SSH; 25ms is a good balance)
+set -s escape-time 25
+
+# Enable 256 colors
+set -g default-terminal "tmux-256color"
+set -ag terminal-overrides ",xterm-256color:RGB"
+
+# -------------------------------------------------------------------
+# Status bar theme
+# -------------------------------------------------------------------
+set -g status-position bottom
+set -g status-interval 5
+set -g status-style "bg=#1a1b26,fg=#a9b1d6"
+
+# Left: session name
+set -g status-left-length 30
+set -g status-left "#[fg=#1a1b26,bg=#7aa2f7,bold]  #S #[fg=#7aa2f7,bg=#1a1b26,nobold] "
+
+# Right: continuum status + time
+set -g status-right-length 50
+set -g status-right "#[fg=#565f89] #{?client_prefix,#[fg=#e0af68]PREFIX ,}#[fg=#565f89,bg=#1a1b26] %H:%M #[fg=#1a1b26,bg=#7aa2f7,bold] %d %b "
+
+# Window tabs
+set -g window-status-format "#[fg=#565f89]  #I #W "
+set -g window-status-current-format "#[fg=#7aa2f7,bg=#24283b,bold]  #I #W #[fg=#24283b,bg=#1a1b26]"
+set -g window-status-separator ""
+
+# Pane borders
+set -g pane-border-style "fg=#3b4261"
+set -g pane-active-border-style "fg=#7aa2f7"
+
+# Message style
+set -g message-style "fg=#7aa2f7,bg=#1a1b26,bold"
+set -g message-command-style "fg=#7aa2f7,bg=#1a1b26"
+
+# Copy mode
+setw -g mode-style "fg=#1a1b26,bg=#7aa2f7"
+
+# Easy config reload
+bind r source-file ~/.tmux.conf \; display "Config reloaded!"
+
+# Better pane splitting (use current path)
+bind \\ split-window -h -c "#{pane_current_path}"
+bind - split-window -v -c "#{pane_current_path}"
+unbind '"'
+unbind %
+
+# New window in current path
+bind c new-window -c "#{pane_current_path}"
+
+# Pane resize (if you ever use tmux panes)
+bind -r H resize-pane -L 5
+bind -r J resize-pane -D 5
+bind -r K resize-pane -U 5
+bind -r L resize-pane -R 5
+
+# Quick window switching (prefix + number)
+bind 1 select-window -t 1
+bind 2 select-window -t 2
+bind 3 select-window -t 3
+bind 4 select-window -t 4
+bind 5 select-window -t 5
+bind 6 select-window -t 6
+bind 7 select-window -t 7
+bind 8 select-window -t 8
+bind 9 select-window -t 9
+
+# Window navigation (prefix + h/l)
+bind h previous-window
+bind l next-window
+
+# Session navigation (prefix + j/k/S)
+bind j switch-client -n             # next session
+bind k switch-client -p             # previous session
+bind S choose-tree -sZ              # session tree picker
+
+# Move windows left/right
+bind -r < swap-window -t -1\; select-window -t -1
+bind -r > swap-window -t +1\; select-window -t +1
+
+# Enable vi mode for copy
+setw -g mode-keys vi
+bind -T copy-mode-vi v send -X begin-selection
+bind -T copy-mode-vi y send -X copy-selection-and-cancel
+
+
+# tmux-resurrect settings
+set -g @resurrect-capture-pane-contents 'on'
+set -g @resurrect-strategy-nvim 'session'
+
+# tmux-continuum settings (auto-save and auto-restore)
+set -g @continuum-restore 'on'
+set -g @continuum-save-interval '10'
+
+
+# agent-deck configuration
+# agent-deck-tmux-config-version: 3
+# Added by agent-deck installer - 2026-03-18
+# https://github.com/asheshgoplani/agent-deck
+
+# Terminal with true color support
+set -g default-terminal "tmux-256color"
+set -ag terminal-overrides ",xterm*:Tc:smcup@:rmcup@"
+set -ag terminal-overrides ",*256col*:Tc"
+
+# Performance
+set -sg escape-time 0
+set -g history-limit 50000
+
+# Extended keys: forward Shift+Enter and other modified keys to apps (tmux 3.2+)
+set -s extended-keys on
+set -as terminal-features 'tmux-256color:extkeys'
+
+# Mouse support (scroll + drag-to-copy)
+set -g mouse on
+
+# Auto-enter copy-mode when scrolling up (critical for WSL compatibility)
+# This handles: 1) apps with mouse support, 2) already in copy-mode, 3) normal pane
+bind-key -n WheelUpPane if-shell -F -t = "#{mouse_any_flag}" "send-keys -M" "if -Ft= '#{pane_in_mode}' 'send-keys -M' 'copy-mode -e'"
+
+# Scroll bindings in copy-mode (both vi and emacs modes)
+bind-key -T copy-mode-vi WheelUpPane send-keys -X scroll-up
+bind-key -T copy-mode-vi WheelDownPane send-keys -X scroll-down
+bind-key -T copy-mode WheelUpPane send-keys -X scroll-up
+bind-key -T copy-mode WheelDownPane send-keys -X scroll-down
+
+# Clipboard integration (drag-to-copy)
+bind-key -T copy-mode-vi MouseDragEnd1Pane send-keys -X copy-pipe-and-cancel "xclip -in -selection clipboard"
+bind-key -T copy-mode MouseDragEnd1Pane send-keys -X copy-pipe-and-cancel "xclip -in -selection clipboard"
+# End agent-deck configuration

home/common/programs/tmux.nix

@@ -1,5 +1,17 @@
+{ pkgs, ... }:
 {
   programs.tmux = {
     enable = true;
+
+    # The @plugin lines and the tpm bootstrap are stripped from tmux.conf:
+    # home-manager writes the run-shell lines for these itself, and tpm would
+    # otherwise try to git-clone them into ~/.tmux/plugins at runtime.
+    plugins = with pkgs.tmuxPlugins; [
+      sensible
+      resurrect
+      continuum
+    ];
+
+    extraConfig = builtins.readFile ./tmux.conf;
   };
 }