2. Download the Fedora Minimal template and use the fedora-minimal.sh script to do basic configuration. Then, create TemplateVMs based on it. The most important thing here is that you replace sys-net and sys-firewall with a minimal version for attack surface reduction. I have been trying to create a minimal template for ProtonVPN, but haven't been able to so far. Any help with this would be appreciated.
3. Run the fedora.sh script to trim down the default Fedora template and do basic configuration. The script includes a systemd user timer `update-user-flatpaks.timer` that you can manually enable on AppVMs. Firefox is also replaced with Brave. Other TemplateVMs should be based on the trimmed down Fedora template.