How to install GlitchTip without Docker

You like the error tracking sentry.io provides, you want to self-host it, but the setup takes up too many resources?
Then https://glitchtip.com/ might be something for you. It is a FOSS reimplementation of the sentry backend with most important features.
You can install it using docker following their guide (https://glitchtip.com/documentation/install), but if you like me like to install things from stretch without docker, then this guide might be for you.

You have any feedback or ideas to improve this? Contact me on Social Media or per E-Mail. You can find my other projects at lw1.at.