This matches the way the ports are written in prerequisites.md and is the format that UFW likes.
Prerequisites
Configuring your DNS server
Getting this playbook's source code
Configuring the playbook
Installing
Registering users
Updating users passwords
Configuring service discovery via .well-known
Maintenance / checking if services work
Maintenance / upgrading services
Maintenance / Synapse
Maintenance / PostgreSQL
Maintenance and Troubleshooting
Uninstalling