Russia has a history of raping, pillaging, and stealing land from their neighbors with NATO acting as the only (somewhat) successful defense against that so far.
Your idea of ‘containment’ in this sense means you’re defending the equivalent of a gang of serial rapists and murderers entering innocent people’s homes, taking their families hostage, and saying the home is now theirs.
It's great seeing all the different approaches people can come up with to do similar things!
I recently worked on a similar side project but took a very different approach. It pretty much was just:
1. A bash script in a Raspberry Pi W that ran `bluetoothctl` once per minute and wrote the raw output for that minute to a file.
2. A systemd process that would ensure the script would get re-run if the process crashed or machine rebooted
3. A separate script that parsed the logs and pushed them to a local sqlite DB that tracked the minute the bluetooth id was found.
4. A daily push to my backup server that stored the sqlite DB
I decided to use systemd and a simple(10loc) bash script since I faced a similar issue to the OP where my pi would crash(although it was purely my fault for messing with a bunch of cables) and I wanted a way to get it running again with the lowest overhead. I also wanted as few dependencies as possible.
I went with SQLite because it made querying for trends and building dashboards simpler and more interesting(and because the real project was the sqlite interface I was building :) )
One thing I learned from running this which also may answer a couple of OPs questions: Apple devices like hiding themselves. The only way I could get my Apple laptops and phones to show up was to keep the bluetooth settings menu open on them. Otherwise, they wouldn't appear to the bluetooth scanner. I can't speak much to whether android devices are 'noisier', but the lack of bluetooth feeds for Apple devices alone cuts out a significant part of the value of bluetooth scanning for crowd sensing, given the market share for Apple devices.
I think the Rails resource generators still default to creating Coffeescript files. I could be wrong though — I switch between Rails 4,5 and 6 projects right now. I’ve been on over a dozen Rails projects at different companies and only ever worked one project that used Coffeescript in production, and that was an app built pre-2010.
Your idea of ‘containment’ in this sense means you’re defending the equivalent of a gang of serial rapists and murderers entering innocent people’s homes, taking their families hostage, and saying the home is now theirs.