If you go to osnews.com and do a search for QNX, you will find many articles that were written over the past 20 years that describe the features, and pros and cons of running QNX. I believe there was also an article that compared BeOS (reborn as Haiku OS, haiku-os.org) and QNX. Source: almost 2 years ago

I assume you know of https://haiku-os.org. Source: about 2 years ago

I am in a similar position. I'm not using the very latest C++ features, but maybe this will be of use to you anyway? I decided to get started writing a native app for Haiku (http://haiku-os.org/), which you have to write in C++. So I loaded it up in a VM and started plugging away. I have always avoided CMake, but it's so popular these days that I decided to give in and get comfortable with it. Haiku is really... - Source: Hacker News / over 2 years ago

{Yes - I know what I'm about to post is NOT "Linux" ...but if you're wanting to learn something new and/or have some nostalgia for the late-90s/early-00s, read on} I absolutely LOVED BeOS back in the day Though I understand why Apple chose to buy NeXT instead of Be in the 90s, I wish they'd bought both - NeXT to get Steve Jobs and NeXT's way of managing apps (where they're all self-contained... - Source: Hacker News / almost 3 years ago

I agree with this. I can also recommend trying out Haiku OS x86 version with UTM emulation (choose between 32-bit or 64-bit OS version), because it requires very little system resources. Haiku is working on an ARM port, but it’s not ready for real-world usage yet. Source: almost 3 years ago

Familiarize yourself with the search page and the many categories you cans search by. Source: over 1 year ago

Distrowatch's Advanced Search page: https://distrowatch.com/search.php#advanced Note that under the "Init Software" section (scroll down on page), the following two choices (amongst numerous others, perhaps too many!) are included: [ ] systemd [ ] Not systemd In other words, here, the User, regardless of their opinion, regardless of their political ideology (or lack thereof!) -- has a happy choice! They can choose... - Source: Hacker News / almost 2 years ago

Do it, and tell the world how I mistreated all kinds of interesting (but small) projects, if it makes you feel better. :-D Here a list of almost all the OS distris I've left out: https://distrowatch.com/search.php?ostype=All&category=All&origin=All&basedon=Independent¬basedon=None&desktop=All&architecture=All&package=All&rolling=All&isosize=All&netinstall=All&language=All&defaultinit=All&status=Active#simple... - Source: Hacker News / almost 2 years ago

Distrowatch can help you search for distros based on another distro (eg: Debian derivatives if you really like Debian), or a particular version of a package or desktop (eg: latest XFCE 4.18): https://distrowatch.com/search.php. Source: about 2 years ago

You can search for more ideas on DistroWatch: https://distrowatch.com/search.php. Source: about 2 years ago