Thank you, @alex0 Alex, just tried to copy and paste but I did not see any changes …
Grateful for finding codeberg through you though!
Thank you, @blork I appreciate it and am looking forward to trying it then!
Update on my GPT adventure:
I have just uploaded the code-structure that GPT engineer gave me - already using codeberg 
- and here is the follow-up chat with Chat GPT to bug fix it. As you can see from there, the slash-command does not work, but the original placeholder instert-blocks slash-command from @Aryan is still in there.
(I also started another chat history where Chat GPT took a different approach. I stopped after several attempts of debugging the primary file {index.js}).
Status (for myself and maybe inspiring for others who are in a similar situation of desiring a Logseq-plugin:
For now, I will use the Obsidian-plugin for new long form text (so I can link to pages) and just continue with GingkoWriter for my existing notes - since the interface is better and I haven’t yet found a way to import notes in a way that I like
(In case anyone reading this is wondering how to “get a link” to a gingko file:
I timestamp new entries it like this YYYYMoMoDDHHMiMi to have a manual link to search and thus easy retrievability.)
Still open to contribute more to seeing a Gingko structure in Logseq (or Obsidian)!