Hey, if tailscale is something you are worried about. There are open source alternatives to it as well but I think if your purpose is to just port forward a simple server port, wouldn't ssh in general itself be okay with you.

You can even self host tailscale via headscale but I don't know how the experience goes but there are some genuine open source software like netbird,zerotier etc. as well

You could also if interested just go the normal wireguard route. It really depends on your use case but for you in this case, ssh use case seems normal.

You could even use this with termux in android + ssh access via dropbear I think if you want. Tailscale is mainly for convenience tho and not having to deal with nats and everything

But I feel like your home server might be behind a nat and in that case, what I recommend you to do is probably A) run it in tor or https://gitlab.com/CGamesPlay/qtm which uses iroh's instance but you can self host it too or B (recommended): Get a unlimited traffic cheap vps (I recommend Upcloud,OVH,hetzner) which would cost around 3-4$ per month and then install something like remotemoe https://github.com/fasmide/remotemoe or anything similar to it effectively like a proxy.

Sorry if I went a little overkill tho lol. I have played too much on these things so I may be overarchitecting stuff but if you genuinely want self hosting to the extreme self, tor.onion's or i2p might benefit ya but even buying a vps can be a good step up

> I was in another country when there was a power outage at home. My internet went down, the server restart but couldn't reconnect anymore because the optical network router also had some problems after the power outage. I could ask my folks to restart, and turn on off things but nothing more than that. So I couldn't reach my Nextcloud instance and other stuff. Maybe an uninterruptible power supply could have helped but the more I was thinking about it after just didn't really worth the hassle anymore. Add a UPS okay. But why not add a dual WAN failover router for extra security if the internet goes down again? etc. It's a bottomless pit (like most hobbies tbh)

Laptops have in built ups and are cheap, Laptops and refurbished servers are good entry point imo and I feel like sure its a bottomless pit but the benefits are well worth it and at a point you have to look at trade offs and everything and personally laptops/refurbished or resale servers are that for me. In fact, I used to run a git server on an android tab for some time but been too lazy to figure out if I want it to charge permanently or what