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I used to have a UDM Pro, a Unifi rack mount switch, four APs, three cameras, and two mini POE switches. I sold it all when I moved recently, and now I just have 3 cheapish routers running OpenWRT.

I wish I kept all the Unifi stuff.

Do it.

But how can I trust you?

You can’t.

Can you trust me?

No.

Use https://www.passwordstore.org/. Sync it to a trusted person’s git server. Put the gpg key on a usb stick and give it to them. Write the password to the GPG key on a piece of paper and give it to your lawyer with instructions to give it to your trusted person in the event of your death.

spamassassin

I use Debian stable and subscribe to the debian-security-announce mailing list, so I update each time I get an email from it.

My strategy is to have been married to the person for at least a decade so expectations are set.

1. “They’re rambling about trains again; good thing I brought my knitting.”
2. “Oh, they brought their knitting, I may as well keep rambling about trains because they are not paying attention.”
3. good food
4. walk
5. bed

I have 5 docker-compose-based services. I wrote a shell script:

#!/usr/bin/env bash
for y in $(find /etc/ -name docker-compose.yml); do
  cd $(dirname $y)
  docker compose pull
  systemctl restart $y
done

(edit: spelling; thanks Unquote0270)

0. Consider getting a VPS to play around with to learn how this stuff works before you expose your data to the internet.
1. Learn about how DNS works. You will create an A record (and possibly also an AAAA recordy) for your domain pointing to your home IP (or VPS).
2. If SquareSpace does not let you set records (and will only allow you to use Squarespace-hosted services) you will need to migrate your domain to another provider. I like gandi.net.
3. Learn how your router does port forwarding. You will forward port(s) for the calendar service from your router to your home PC. (Or learn how to do firewalls on your VPS.)
4. Before you actually connect to it with credentials over the internet, set up SSL/TLS certificates with LetsEncrypt.