diff --git a/CLAUDE.md b/CLAUDE.md
index a430b05..8eda00e 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -49,7 +49,7 @@ stow -D nvim
 - Prompt: Powerlevel10k with instant prompt (async rendering)
 - Custom `prompt_jj` segment in `.p10k.zsh` shows jj change ID, bookmarks, and flags (conflict/divergent/empty)
 - Plugins: `zsh-autosuggestions` (fish-like inline suggestions), `fzf` (history/file search)
-- Powerlevel10k sourced from `/usr/share/zsh-theme-powerlevel10k/` (Arch); on Debian clone manually to `~/powerlevel10k/`
+- Powerlevel10k: sources from `/usr/share/zsh-theme-powerlevel10k/` (Arch/system) or `~/powerlevel10k/` (Debian manual clone) — whichever exists
 
 **kitty** (`kitty/.config/kitty/kitty.conf`):
 
diff --git a/README.md b/README.md
index e377df5..e06f384 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ stow git zsh nvim vim tmux jj kitty
 
 ### Debian
 ```sh
+apt install git zsh tmux vim neovim kitty
 apt install zsh zsh-autosuggestions fzf
 # Install powerlevel10k manually:
 git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ~/powerlevel10k
diff --git a/nvim/.config/nvim/lazy-lock.json b/nvim/.config/nvim/lazy-lock.json
index b0bd1b0..fa6a8d9 100644
--- a/nvim/.config/nvim/lazy-lock.json
+++ b/nvim/.config/nvim/lazy-lock.json
@@ -3,10 +3,10 @@
   "lazy.nvim": { "branch": "main", "commit": "306a05526ada86a7b30af95c5cc81ffba93fef97" },
   "neo-tree.nvim": { "branch": "main", "commit": "84c75e7a7e443586f60508d12fc50f90d9aee14e" },
   "nui.nvim": { "branch": "main", "commit": "de740991c12411b663994b2860f1a4fd0937c130" },
-  "nvim-web-devicons": { "branch": "master", "commit": "d7462543c9e366c0d196c7f67a945eaaf5d99414" },
-  "plenary.nvim": { "branch": "master", "commit": "b9fd5226c2f76c951fc8ed5923d85e4de065e509" },
-  "rose-pine": { "branch": "main", "commit": "cf2a288696b03d0934da713d66c6d71557b5c997" },
+  "nvim-web-devicons": { "branch": "master", "commit": "c72328a5494b4502947a022fe69c0c47e53b6aa6" },
+  "plenary.nvim": { "branch": "master", "commit": "74b06c6c75e4eeb3108ec01852001636d85a932b" },
+  "rose-pine": { "branch": "main", "commit": "9504524e5ed0e326534698f637f9d038ba4cd0ee" },
   "telescope-fzf-native.nvim": { "branch": "main", "commit": "6fea601bd2b694c6f2ae08a6c6fab14930c60e2c" },
   "telescope.nvim": { "branch": "master", "commit": "a0bbec21143c7bc5f8bb02e0005fa0b982edc026" },
-  "vimtex": { "branch": "master", "commit": "82d2305ff71dfb3bd91602534cc9bb9a195bcb38" }
+  "vimtex": { "branch": "master", "commit": "9306903316c3ddd250676b7cf97c84a84c9c8f99" }
 }
diff --git a/tmux/.tmux.conf b/tmux/.tmux.conf
index 1e4b22a..6f9aec3 100644
--- a/tmux/.tmux.conf
+++ b/tmux/.tmux.conf
@@ -43,7 +43,9 @@ bind-key R source-file ~/.tmux.conf \; display-message "tmux.conf reloaded."
 
 bind-key [ copy-mode
 bind-key ] paste-buffer
-bind-key -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel 'wl-copy --foreground'
+if-shell '[[ -n "$WAYLAND_DISPLAY" ]]' \
+  'bind-key -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel "wl-copy --foreground"' \
+  'bind-key -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel "xclip -selection clipboard"'
 bind-key -T copy-mode-vi v send-keys -X begin-selection
 
 # Status Bar (Rosé Pine)
diff --git a/zsh/.zshrc b/zsh/.zshrc
index d13c8a7..519ee0d 100644
--- a/zsh/.zshrc
+++ b/zsh/.zshrc
@@ -19,9 +19,17 @@ bindkey '\e[1;3D' backward-word    # Alt+Left
 
 # Completion
 autoload -Uz compinit && compinit
-source /usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh
+if [[ -f /usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh ]]; then
+  source /usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh
+elif [[ -f /usr/share/zsh-autosuggestions/zsh-autosuggestions.zsh ]]; then
+  source /usr/share/zsh-autosuggestions/zsh-autosuggestions.zsh
+fi
 
-source /usr/share/zsh-theme-powerlevel10k/powerlevel10k.zsh-theme
+if [[ -f /usr/share/zsh-theme-powerlevel10k/powerlevel10k.zsh-theme ]]; then
+  source /usr/share/zsh-theme-powerlevel10k/powerlevel10k.zsh-theme
+elif [[ -f ~/powerlevel10k/powerlevel10k.zsh-theme ]]; then
+  source ~/powerlevel10k/powerlevel10k.zsh-theme
+fi
 [[ -f ~/.p10k.zsh ]] && source ~/.p10k.zsh
 
 # PATH configuration
@@ -39,5 +47,11 @@ alias open='xdg-open'
 alias transcat='queercat -f transgender'
 alias bicat='queercat -f bisexual'
 
-source <(fzf --zsh)
+# fzf shell integration: newer versions use --zsh, older Ubuntu installs use static files
+if fzf --zsh &>/dev/null; then
+  source <(fzf --zsh)
+elif [[ -f /usr/share/doc/fzf/examples/key-bindings.zsh ]]; then
+  source /usr/share/doc/fzf/examples/key-bindings.zsh
+  [[ -f /usr/share/doc/fzf/examples/completion.zsh ]] && source /usr/share/doc/fzf/examples/completion.zsh
+fi
 export PATH="$HOME/.local/bin:$PATH"