Windrill

Login Loop:

Analysis: something must have failed to start, figure out what journalctl -b on a shell (ctrl-alt-f3 or f2 or f1 from user login screen)
To temporarily refrain from touching display drivers nomodeset can be tried (boot screen click e, after quiet splash on the line starting with linux) (another option: nouveau.modeset=0)
Display managers(?): gdm3 (configured underneath: X11, lightdm, sddm), nouveau
- switching may help but probably won't if it is not trivial (don't even try twice)
- xauthority files only matter when you use a specific display manager...
Kernels that give trouble: nvidia kernels & drivers
If you didn't find the solution to your problem, make your google search phrase more specific

	1. npm install Jest
	- This command is the Jest package
	2. npm install ts-jest
	- This enables jest with TypeScript annotations
	3. npm i --save-dev @types/jest
	- Use with step 4
	4. Addd "@types/jest" to your tsconfig.json:
	{ "compilerOptions": { "types": [""@types/jest"] } }
	- This fixes your 'test' and 'expect' not found errors
	5. Create some files named xxx.test.ts anywhere in your project. Usually these files will be auto-detected by jest for testing without needing to configure a jest config file.