readerwriterqueue VS iiab

I have looked at the commonly recommended - https://github.com/cameron314/readerwriterqueue - https://github.com/rigtorp/MPMCQueue

The PREEMPT error looks like its a C module but I cannot tell from he little snippet of the log - you may do better to move the *arr and Synchthing into Docker containers to keep the OS cleaner.

For audio DSP in a Qt app I have good success with using a lock-free queue (e.g. https://github.com/cameron314/readerwriterqueue) to communicate from / to the UI threads. Code more-or-less looks like

    connect(model, &ModelObject::somethingChanged, [=] {

We recently removed readerwriterqueue from our project due to issues and replaced with simple locking queue (and got better performance in the result). Your code looks interesting, but we can't use it due to C++17 usage.

Use a tool like Internet-in-a-box and keep a "local" version of tons of very useful stuff like Wikipedia and Maps.

Internet-in-a-box is a Free, Open source offline internet tool. Its a step up from having an offline wikipedia copy, it has a lot of Ebooks, and a offline version of Khan academedy youtube videos, and more etc

#1: iFixit is now available for offline use #2: Internet-in-a-Box - an Offline copy of the best of the Internet (Wikipedia, OpenStreetMap, Khan Academy, Stack Exchange, ETC) | 2 comments #3: Where There Is No Doctor - a village health care handbook | 2 comments

IMO the best use case is https://internet-in-a-box.org/. You download a bunch of stuff like Wikipedia, videos, books, etc, and any device with WiFi can access them. Much better than relying on something like a laptop or old phone with all of these resources on them. Get a couple of Raspberry Pi's and some SD cards and you can clone them all and have lots of backups. They are small and use little power so you can hide them in places that can't easily be found.

this is awesome, but for those of us that don't feel like spending ~$1200... may I suggest internet in a box

Not a hard copy, but unless you’re worried about something destroying all electronics, you can make an offline library with Internet in a box.

Check out https://internet-in-a-box.org