

Check out SFTPGo for backups.
Also, I wouldn’t open any ports on your parents network other than for something like wireguard
I especially wouldn’t expose home assistant to the internet, as it’s quite lax on the security front.
As for RAM, 8gig will be more than enough unless they have an ungodly amount of smart devices. I’d stay away from a raspberry pi when deploying to an offsite location, as they’re not very reliable long term. Get a NUC or something similar. I just picked up a gmktec n150/12gig soldered on amazon for like $130
Yeah I’m confused, isnt language tool also already open source? Nothing on the above repo explains the difference. Official language tool server can be found below
https://github.com/languagetool-org/languagetool