FydeOS, a flexible ChromeOS alternative, delivers a Chromebook-like experience on regular PCs, with or without Google services, on-premise or in the cloud.
[low cost, but not quite free]
If there are shared folders on your network, and you need to access them from your Chromebook, there's a very easy method of doing so that doesn't involve installing third-party apps.
More helpful:
https://www.xda-developers.com/how-sideload-apps-chromebook/
Sometimes, an Android app that you want to install on your Chromebook may simply not be available on the Google Play Store. This could be either because it's incompatible, or because the app's developer has tagged it as such due to the experience on your device not being exactly how they prefer to present it....
[probably have to set up a Google profile on the Chromebook to log in and enable Android apps, but could you install the apps and use them under the guest login?]
Not that clear, what exactly is encrypted and how to tell.
MrChromebox.tech : Custom coreboot firmware and firmware utilities for your Chromebook/Chromebox
To install full EFI on a Toshiba, a "jumper" screw has to be removed to disable write-protect.
https://www.reddit.com/r/chromeos/comments/2ljid3/how_to_disable_writeprotect_on_toshiba_chromebook/
https://www.youtube.com/watch?v=JcZ711cxKdA
Find out how to enable Secure DNS / HTTPS-over-DNS in modern web browsers to improve privacy and security while using the web browser.
This just might make ChromeOS boot from Grub on my "classic" partition table!
I had to do do all the additional steps too, to make it work. But it works!
Crostini, Crouton, and ARC Welder (Linux and Android environments)
RCS is planned for the future, but awaiting more public API support.
Can Google Authenticator on a phone require or unlock with an NFC key at all?