Always enjoyed scrolling though these posts, figured I'd give it a go here:

What are your must-have selfhosted services?

Some of mine:

• Adguard Home - Add blocker
• Adguard Home Sync - sync multiple adguard instances
• Bookstack - documentation
• BorgMatic - config driven backup
• Change Detection - monitor websites for changes, prices for example.
• FreshRSS - RSS reader
• Home Assistant - home automation
• KitchenOwl - groceries
• Rclone - sync backups to remote storage
• Traefik - reverse proxy
• Vikunja - todo list
• Wireguard Easy - VPN