You are saying that services are doing and sometimes even randomly. However, there is no error message nor logs, which can even provide us some insights. I’m wondering what I can imagine under the word “die”, which you wrote very often. If I’m looking to Foris or LuCI, which according to you just die randomly. It means - slow loading, some HTTP status code, throws you a trackback or it does not show anything (which I doubt)?
I’d suggest reading the article in our documentation for Getting help or following our recommended procedure for using a re-flash method in our documentation. You were in some cases using not recommended medkit and some of them may not be compatible with a newer batch of Turris Omnia routers due to the new u-boot version and there must be a symlink for boot script. You shouldn’t use omnia-stable medkit nor api.turris.cz at all.