From 1ca1d04e8d4865582d83ef715cca1277c762d426 Mon Sep 17 00:00:00 2001
From: Joao Porta <jpedro.porta@gmail.com>
Date: Wed, 15 Jul 2026 11:25:18 -0300
Subject: [PATCH] tmux

---
 hosts/jpporta-nixos/home.nix          |   4 +-
 hosts/writter-deck/home.nix           |   4 +-
 modules/home-manager/tmux/default.nix | 180 ++++++++++++++++++++++++--
 3 files changed, 178 insertions(+), 10 deletions(-)

diff --git a/hosts/jpporta-nixos/home.nix b/hosts/jpporta-nixos/home.nix
index 50821ee..1ffb684 100644
--- a/hosts/jpporta-nixos/home.nix
+++ b/hosts/jpporta-nixos/home.nix
@@ -86,7 +86,9 @@
 
     nvim.enable = true;
     pi.enable = true;
-    tmux.enable = true;
+    tmux = {
+      enable = true;
+    };
     openspec.enable = true;
     power-profiles.enable = true;
   };
diff --git a/hosts/writter-deck/home.nix b/hosts/writter-deck/home.nix
index 91803cf..00ba03c 100644
--- a/hosts/writter-deck/home.nix
+++ b/hosts/writter-deck/home.nix
@@ -38,7 +38,9 @@ in
       enable = true;
       fastfetch = false;
     };
-    tmux.enable = true;
+    tmux = {
+      enable = true;
+    };
     oh-my-posh.enable = true;
     pi.enable = true;
     nvim.enable = true;
diff --git a/modules/home-manager/tmux/default.nix b/modules/home-manager/tmux/default.nix
index 941b014..b4e059b 100644
--- a/modules/home-manager/tmux/default.nix
+++ b/modules/home-manager/tmux/default.nix
@@ -1,16 +1,180 @@
-
-{ lib, config, pkgs, ... }:
 {
+  lib,
+  config,
+  pkgs,
+  ...
+}:
 
-  options.custom = {
-    tmux.enable = lib.mkEnableOption "enable tmux - terminal multiplexer";
+{
+  options.custom.tmux = {
+    enable = lib.mkEnableOption "enable tmux - terminal multiplexer";
+
+    defaultShell = lib.mkOption {
+      type = lib.types.package;
+      default = pkgs.zsh;
+      defaultText = lib.literalExpression "pkgs.zsh";
+      description = ''
+        Shell used by tmux for new windows and panes. Resolved to its
+        store path so it works the same on NixOS and non-NixOS hosts.
+      '';
+      example = lib.literalExpression "pkgs.bash";
+    };
+
+    defaultTerminal = lib.mkOption {
+      type = lib.types.str;
+      default = "tmux-256color";
+      description = "Default terminal type reported to applications inside tmux.";
+    };
+
+    catppuccinFlavor = lib.mkOption {
+      type = lib.types.enum [
+        "latte"
+        "frappe"
+        "macchiato"
+        "mocha"
+      ];
+      default = "mocha";
+      description = "Catppuccin flavor used by the tmux theme plugin.";
+    };
+
+    extraConfig = lib.mkOption {
+      type = lib.types.lines;
+      default = "";
+      description = "Extra lines appended verbatim to ~/.config/tmux/tmux.conf.";
+    };
   };
 
   config = lib.mkIf config.custom.tmux.enable {
-	  home.packages = with pkgs; [
-	    tmux
-	  ];
+    home.packages = with pkgs; [
+      tmux
+    ];
 
-  	xdg.configFile."tmux/tmux.conf".source = config.lib.file.mkOutOfStoreSymlink "${config.home.homeDirectory}/ndots/modules/home-manager/tmux/tmux.conf";
+    xdg.configFile."tmux/tmux.conf".text = ''
+      ##### Terminal & Color Support #####
+
+      # Kitty = truecolor
+      set -g default-terminal "${config.custom.tmux.defaultTerminal}"
+      set -ga terminal-overrides ",*:Tc"
+
+      # Key line:
+      set -g pane-border-style "bg=default"
+      set -g pane-active-border-style "bg=default"
+      set -g status-style "bg=default"
+      set -g window-style "bg=default"
+      set -g window-active-style "bg=default"
+      set -g default-shell ${config.custom.tmux.defaultShell}/bin/${
+        config.custom.tmux.defaultShell.meta.mainProgram or (lib.getName config.custom.tmux.defaultShell)
+      }
+      set -g extended-keys on
+      set -g extended-keys-format csi-u
+
+      # Reduce escape sequence delay (fixes lag in nvim/zsh)
+      set -sg escape-time 0
+
+      # Prefix to C-a
+      # set -g prefix C-a
+      # unbind C-b
+      # bind-key C-a send-prefix
+
+      # Mouse follow
+      set -g mouse on
+
+      # Split with better keys
+      # unbind %
+      # bind | split-window -h -c "#{pane_current_path}"
+      # unbind '"'
+      # bind - split-window -v -c "#{pane_current_path}"
+
+      # Easy config reload
+      unbind r
+      bind r source-file ~/.config/tmux/tmux.conf
+
+      # Move between panes with tmux-navigator
+      is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
+          | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|l?n?vim?x?|fzf)(diff)?$'"
+      bind-key -n 'C-h' if-shell "$is_vim" 'send-keys M-h'  'select-pane -L'
+      bind-key -n 'C-j' if-shell "$is_vim" 'send-keys M-j'  'select-pane -D'
+      bind-key -n 'C-k' if-shell "$is_vim" 'send-keys M-k'  'select-pane -U'
+      bind-key -n 'C-l' if-shell "$is_vim" 'send-keys M-l'  'select-pane -R'
+
+      # No automatic window renaming
+      set-option -g allow-rename off
+
+      # Bell
+      set -g visual-activity off
+      set -g visual-bell off
+      set -g visual-silence off
+      setw -g monitor-activity off
+      set -g bell-action none
+
+      # Status bar
+      set -g status-position top
+      set -g status-justify left
+
+      # Start index on 1
+      set -g base-index 1
+      set -g pane-base-index 1
+      set-window-option -g pane-base-index 1
+      set-option -g renumber-windows on
+
+      # Resize panes
+      bind -r J resize-pane -D 5
+      bind -r K resize-pane -U 5
+      bind -r L resize-pane -R 5
+      bind -r H resize-pane -L 5
+      bind -r m resize-pane -Z
+      # Resize dragging
+      unbind -T copy-mode-vi MouseDragEnd1Pane # don't exit copy mode after dragging with mouse
+
+      # Vim motions
+      set-window-option -g mode-keys vi
+
+      # Selection
+      bind-key -T copy-mode-vi 'v' send -X begin-selection # start selecting text with "v"
+      bind-key -T copy-mode-vi 'y' send -X copy-selection # copy text with "y"
+
+      set -g @plugin "dweidner/tmux-theme"
+      set -g @plugin 'tmux-plugins/tmux-yank'
+      set -g @plugin 'tmux-plugins/tmux-cpu'
+      set -g @plugin 'tmux-plugins/tmux-battery'
+      set -g @plugin 'catppuccin/tmux#v2.1.1' # See https://github.com/catppuccin/tmux/tags for additional tags
+      set -g @plugin 'b0o/tmux-autoreload'
+      set -g @plugin 'tmux-plugins/tpm'
+
+      bind-key -T copy-mode-vi v send-keys -X begin-selection
+      bind-key -T copy-mode-vi C-v send-keys -X rectangle-toggle
+      bind-key -T copy-mode-vi y send-keys -X copy-selection-and-cancel
+
+      # Catppuccin config
+      set -g @catppuccin_status_background none
+      set -g @catppuccin_flavor '${config.custom.tmux.catppuccinFlavor}'
+      set -g @catppuccin_window_status_style "basic"
+
+      set -g status-right-length 100
+      set -g status-left ""
+      set -g status-left-length 200
+      set -g status-right "#{E:@catppuccin_status_application}"
+      set -agF status-right "#{E:@catppuccin_status_cpu}"
+      set -ag status-right "#{E:@catppuccin_status_session}"
+      set -ag status-right "#{E:@catppuccin_status_uptime}"
+      set -agF status-right "#{E:@catppuccin_status_battery}"
+
+
+      # Neovim delay fix
+      set -sg escape-time 0
+
+      # Tmux keep session
+      set-option -g detach-on-destroy off
+
+      # Focus events
+      set-option -g focus-events on
+      bind-key z resize-pane -Z \; if-shell "tmux list-panes -F '#F' | grep -q Z" "set -g status off" "set -g status on"
+
+      # Clipboard
+      set -g set-clipboard on
+
+      run '~/.tmux/plugins/tpm/tpm'
+    ''
+    + config.custom.tmux.extraConfig;
   };
 }