Update requirements (mostly being more specific)

Author: DanielOaks

os_requirements.md

@@ -4,8 +4,12 @@ If you want to submit and/or maintain distribution of your choice for official S
 * No password for users (we disable the passwords, enabled passwordless sudo and passwordless polkit auth in firstrun script, so keep that in mind).
 * Set user to autologin (we try to achieve this in firstrun script but if you see difference not applying for your OS, be sure to do it).
 * Disable power saving (screensavers, sleep, automatic logout etc).
-* Disable logout option.
 * Be sure to have in your image spice-vdagent and qemu-guest-agent.
+* Either disable logout, or make it so users can't get stuck if they do log out (make sure they either auto-login again immediately, or that they can click a login button / press enter to get logged in again).
+* Disable any lock/sleep buttons, or make it so that if the user does click them they can simply move the mouse or click to escape it.
+* Make sure the OS gets all latest updates as of when the image is built. If your image requires a special update command (for example [pkcon](https://neon.kde.org/faq#command-to-update)) then make sure that is being run.
+* Sound should work out of the box and not be muted.
+* Be sure to have `https://github.com/Shells-com/shells-helper` installed on the image, so that notifications will be passed to the Shell host.
 
 ## Naming