The complete removal of Google Analytics (on the CloudFlare side) accelerated the #TulpaWiki work almost 10 times! On the screenshot: on the left - with metrics, on the right - without them.
Conclusion: metrics and tracking interfere with accessibility.
Thanks @heydon for an incredibly simple but super effective solution to support the "night theme." In combination with the affordable "inclusive toogler/switcher", it works and works perfectly. #TulpaWiki
In general, the process is going well due to an extremely simple and clean template. Conversion and organization of #TulpaWiki materials with an attempt to preserve old links takes more time.
In the process of designing the #TulpaWiki layout, I came across the fact that it was easier for me to make a small component through #Svelte than to write it with my hands unsuitable for javascript. 
Today is a new-era-day for #TulpaWiki: https://tulpawiki.org/ru/tulpawiki/future
