I also don’t get the focus on handling DHCP renewals in the kernel fast path. With 2000 subscribers per OLT and say a 5 minute lease time that’s only a few renewals a second.

The Redis test suite is still written in Tcl: https://news.ycombinator.com/item?id=9963162 (although more recently antirez said somewhere he wished he'd written it in C for speed)

It’s also vague as, what if I run a VPS provider and someone can upload images to a marketplace like thing, does that count as SaaS? How about if someone’s only use of my services is to run that image?

Steer clear unless you want to open yourself up to the copyright owners opinion changing. (See for example the pine email client and the copyright discussions there.)

This kind of thing annoys me. This is why CTFs are great, where the goal is to get the flag string. Obviously harder to do for sysadmin, but expecting a particular configuration when I managed to make it work without doing things exactly as they wanted is no better than a poorly written exam.

Basically you end up with something not legally enforceable. And will someone actually doing evil care about your license?

Not at all. Put the LAN interface in a network namespace that is different to the host (ip link set ... netns ...).

This gives you your "kill switch" without even needing firewall rules, it happens on a lower level.

The whole thing is AI slop. I thought there might be something interesting here but it's just a bunch of disconnected fragments of OpenWRT config and some other bits without any overall thought.

It doesn't even use network namespaces. You can probably do better by giving your LLM https://www.wireguard.io/netns/ as input.

I think it is more nuanced than that -- they are sending a message via LinkedIn, is it really the company or a scam?

You should take time to respond appropriately and not be rushed in all cases. By acknowledging the message they'll want to continue the discussion. It's probably worth considering a standard response to approaches like this, along the lines of "Please contact us on generic-something@domain, I cannot discuss this on my personal social media account."

CouchDB is in many ways very similar to JSONBin and self hostable. I have also written small services that use SQLite's JSON support and wrap that up in a fairly restful API (e.g. POST a document to a list adds an item, etc.).

Another option is to use something like PostgREST, which I get isn't at all what you asked, but in this day and age you can just ask ChatGPT to make you a schema and it takes 2 minutes to prototype a REST API.

Really it depends if you have preferences for what datastore you use, as that is the more difficult bit when self hosting.