Stop backing up and restoring a locally built libicu and instead symlink the distribution ICU module (/usr/lib/x86_64-linux-gnu/mod_icu.so) into /opt/linkding/libicu.so. Add libsqlite3-mod-icu to dependencies and create the symlink after building the frontend. Remove the entire manual download/compile flow for the SQLite ICU extension and its related backups, simplifying installation and relying on the system-provided ICU extension.
Add Linkding integration: new CT template (ct/linkding.sh) and installer (install/linkding-install.sh) to deploy Linkding as a container. Installer fetches the GitHub release, builds the frontend, compiles the SQLite ICU extension, creates .env with generated admin password, and installs systemd services (linkding, linkding-tasks). Also add frontend metadata (frontend/public/json/linkding.json) for the app catalog. Minor tweak: remove unused import_local_ip from install/wger-install.sh.
Pass VITE_APP_API_BASE_URL, UPTIME_APP_API_BASE_URL and VITE_APP_LOG_LEVEL into the Checkmate client build so the frontend targets /api/v1 and uses a warn log level (applied in both update and install scripts). Rename PORT to SERVER_HOST/SERVER_PORT in the installer and set SERVER_HOST=0.0.0.0 so the server binds correctly. Use quiet systemctl enable (-q --now) for checkmate services and reload nginx instead of re-enabling it. Move vaultwarden-install.sh into install/deferred/.
Add support for deploying Discourse as a container: adds ct/discourse.sh (container build/install/update flow and resource defaults), frontend/public/json/discourse.json (app metadata, install resources, and notes), and install/discourse-install.sh (full installer that installs dependencies, Postgres/Node/Ruby, clones the Discourse repo, generates secrets and DB password saved to /opt/discourse/.env, installs gems and yarn, precompiles assets, runs migrations, creates an admin user, sets up a systemd service and nginx reverse proxy, and enables required services). Admin user 'admin' is created with a generated password stored in the .env file.
