I don’t know of an all-in-one-place guide but there’s not a whole lot to it. Just look up how to do each of the parts you mentioned. I’d say that buying a domain and using LetsEncrypt is not really in the self-hosting spirit (i.e. you should run your own DNS and CA) but it’s up to you. Running a serious CA with real security is quite hard, but for your purposes you can just do whatever. There are various programs or scripts for it. I still use CA.pl from the openssl distro, but that’s very old school and people here hate it. Anyway, you will do a little head scratching to get everything working right, but it will be educational, so you’ll get something out of it in its own right.

I’ve tried to use it but it’s way too flaky. :(

sensorwatch.net is the only one I have any interest in, and it doesn’t pair with a phone.

I will check on that but I had thought that the point of moving from mag stripe to chip cards was to stop exposing the card number. The is instead a 2 way encrypted conversation between the chip and the bank server. I had expected the phone app to do about the same thing.

Also, payment terminals (I was once pretty familiar with them) are likely to be more secure than phones.

Just tap your card. I’m baffled about why people think it’s important to use their phones.

Blade Runner? Not AI per se, but close.

Lol a Google share link on the privacy forum. Anyone know where it goes? OP can you fix it?

It appears very difficult to do that without rooting the phone. You could instead have the notification trigger an external switch that disconnects the charger, or just put the charger on a timer. I just use my phone’s timer alarm to tell me when to unplug, and that has worked pretty well.

Do you mean TOTP? FIDO? Or what? FOSS ones exist but they might not do exactly the right thing. I’ve had some ideas for self-built too. What would you do on the host interface side? Wouldn’t you want the host to not have the secret?

It’s an interesting question.

The UN thing was stupid, it peddled a story about disabling the phone network bla bla. The real purpose of those sim banks is various forms of illicit scraping or click fraud, signing up for 100’s of fake SMS verified Facebook accounts so you can run sales scams, etc. That sounds like the nature of the thing that was just busted.

Article lede: European law enforcement in an operation codenamed ‘SIMCARTEL’ has dismantled an illegal SIM-box service that enabled more than 3,200 fraud cases and caused at least 4.5 million euros in losses.

It’s like one of the most leftist technical communities I’ve seen, perhaps more so than Rust

Rust is on the left? That’s (cough) GNUs to me ;).

A moth goes into a podiatrist’s office…

How many of these donations are you processing per minute? Are they mostly cash, credit card, or what? If credit card, your payment processor likely has a category for donations, as well as different types of sale. These days they can usually email a receipt or print on on the payment terminal. I don’t see much self-hosted software in this.