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

Snowflake and i2pd could work but not in the best conditions.

A tor guard/middle relay or bridge/snowflake and i2pd node.

In Spain we have bizum. It is instant, well integrated with bank apps, works with a mobile number and it is free.