diff --git a/home/run_onchange_install-packages.sh.tmpl b/home/run_onchange_install-packages.sh.tmpl
index 907d660..26e63ef 100644
--- a/home/run_onchange_install-packages.sh.tmpl
+++ b/home/run_onchange_install-packages.sh.tmpl
@@ -1,17 +1,58 @@
 {{ if eq .chezmoi.os "linux" -}}
-#!/bin/sh
+#!/bin/bash
+set -eu
+
+# This script is intended to be idempotent and should be safe to run multiple times.
+# No custom packages should be expected to be installed by default.
+
+{{ if .wsl }}
+# WSL-specific commands
+{{ else }}
+# Non-WSL  commands
+sudo apt install -y xclip xsel
+{{ end }}
+
+# TODO: Add basic yes/no prompts before installing packages
+if ! type -P zsh; then
+    echo "chezmoi: Installing zsh"
+    sudo apt install zsh
+fi
+
+# Install micro (+ register as text editor)
+curl https://getmic.ro/r | sudo sh && sudo mv ./micro /usr/bin
+sudo apt remove -y micro
+
 # libpq-dev libssh-dev libsqlite3-dev
-echo "chezmoi: Installing packages"
-sudo apt install micro iperf3 ripgrep unzip p7zip-full zsh fish nmap curl git reptyr sqlite
+echo "chezmoi: Installing apt packages"
+sudo apt install -y iperf3 ripgrep unzip p7zip-full zsh fish nmap curl git reptyr sqlite
 
-echo "chezmoi: Installing hishtory"
-export HISHTORY_SERVER="https://hsh.{{ template "keys.tmpl" "privateDomain" }}"
-export HISHTORY_SKIP_INIT_IMPORT='true'
-curl https://hishtory.dev/install.py | python3 - --offline --skip-config-modification
-echo "chezmoi: This may take some time while the hishtory database is populated."
-hishtory init {{ (rbw "hishtory-user_secret").data.password }} --force 
-hishtory syncing enable
+# Install hishtory
+if ! type -P hishtory; then
+    echo "chezmoi: Installing hishtory"
+    export HISHTORY_SERVER="https://hsh.{{ template "keys.tmpl" "privateDomain" }}"
+    export HISHTORY_SKIP_INIT_IMPORT='true'
+    curl https://hishtory.dev/install.py | python3 - --offline --skip-config-modification
+fi
 
+# Hishtory initialization
+if type -P hishtory; then
+    if ! hishtory status | grep -q "$(rbw get 'hishtory-user_secret')"; then
+        echo "chezmoi: expected user secret not found, initializing hishtory"
+
+        hishtory init "$(rbw get 'hishtory-user_secret')" --force
+        hishtory syncing enable
+    fi
+else
+    echo "chezmoi: hishtory not found, skipping initialization"
+fi
+
+# Install chatgpt
+if ! type -P chatgpt; then
+    echo "chezmoi: Installing chatgpt"
+    curl -L -o chatgpt https://github.com/kardolus/chatgpt-cli/releases/latest/download/chatgpt-linux-amd64
+    chmod +x chatgpt
+    sudo mv chatgpt /usr/local/bin/
+fi
 
 {{- else if eq .chezmoi.os "darwin" -}}
 #!/bin/sh