The only stuff I have ever had catch fire in over 20 years if doing this were old crt’s and tv’s. So I just never used to leave those on when leaving the house. I have yet to experience an lcd failure. I have had power supply failures including Apple laptops but they just let the magic smoke out.

I use my Nextcloud at my employment all the time. It’s a great way to get scripts I have written deployed on client machines.

I use my Exchange server for all my alerting and subscribed mail lists. Plus I have the Proxmox mail filter in front of that which is really good at keeping the spam away.

I have self deployed Bitwarden and have come to depend on that very quickly. Pihole and Zabbix are other tools I use as well as having tftp and anon ftp servers up. So yes, my homelab is part of what allows me to work effectively.