I’m a Tor relay operator. For years, I ran a Tor guard/middle relay, but I often ran into issues with certain services and websites that would blacklist my IP address within days of changing it. After dealing with that for a long time, I eventually got tired of the hassle and switched to running a Tor bridge instead, to help people bypass censorship in authoritarian countries. I think it’s a better fit for a home connection.

In the bios should be an option to enable (speaking the bonus)

Tor bridge/Snowflake , i2pd to help circumvent censorship on some countries

Tor bridge/snowflake, i2pd, syncthing relay, ipfs, pihole, wireguard…

Seedbox, tor bridge, i2pd node, pihole, wireguard…there are a lot of things you can run.

mldonkey for ed2k/kad network and bittorrent

You still have realvnc lite. It is free, 1 user, 3 machines, less features, but the basics still there.

Well you could run these services in your server (only if you have enough spare bandwidth, ram and cpu) to help the comunity to circumvent censorship in some countries, like Russia or Iran. Here you have more information for tor and i2pd.

Tor relay (guard/middle or bridge/snowflake) and i2p node (i2p, i2p+ or i2pd)

Tor bridge/relay and i2p node