coreboot might be a bit more popular than Zephyr RTOS. We know about 5 links to it since March 2021 and only 4 links to Zephyr RTOS. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
BIOS replacement: Https://coreboot.org - T440p, X131e, X1C1, and xx30 series (no 61) or older Https://libreboot.org - similar to coreboot as of 20221214 release. Source: over 1 year ago
All of that code is also in the upstream coreboot.org sources, although these sources are less-well tested, generally speaking. Tested binaries (including a tested "more regular" payload like SeaBIOS or Tianocore instead of Chrome OS' "depthcharge" payload) based on that code can be obtained at https://mrchromebox.tech/. Source: over 2 years ago
Coreboot is great if you would like to enjoy working with the BIOS. https://coreboot.org/ r/coreboot. Source: over 2 years ago
Support guys like this: Https://system76.com/ & https://coreboot.org/ that do their best to remove everything proprietary at as low level as possible for Intel and AMD. You can also hack some older thinkpads that I think completely disable IME. Source: almost 3 years ago
If it is a mac, buy a similarly spec'd non-apple laptop, install coreboot, and then copy over your old drive's user data. https://coreboot.org. Source: about 3 years ago
I can recommend [Zephyr](https://github.com/zephyrproject-rtos/zephyr) for these things. Source: over 2 years ago
Zephyr, RIOT, NuttX are all open source RTOSes happy about contributions. Source: over 2 years ago
Microcontrollers are a good start. Boards are cheap and sensors are plentiful. You could get a yet unsupported board and port RIOT, Zephyr or NuttX. Source: over 2 years ago
Zephyr Project: Update to 2.5 or later. Patches are available for prior supported versions. See the Zephyr security advisory for more information. Source: over 2 years ago
GRUB - Multiboot boot loader
Amazon FreeRTOS - Official Twitter Feed for Amazon Web Services. For support, go to @AWSSupport. Find out more about AWS #reInforce here: https://t.co/ZmyQhxo8uc
Libreboot - Libreboot is a distribution of ...
Windows 10 IoT - The operating system built for your Internet of Things
U-Boot - Das U-Boot (the Universal Bootloader) and Embedded Linux
Nucleus RTOS - Nucleus RTOS is a proven, stable, and optimized real time operating system deployed on over 3 billion embedded devices