You’re welcome! I may still lack of each specific details of tool’s and userscripts’ links though I prefer each WaniKanian browse and test themselves from the central wiki page. No, I’m not suggesting you to browse it all at once. It’s just for a future reference.
https://community.wanikani.com/t/the-new-and-improved-list-of-api-and-third-party-apps/7694?u=oshin
Who knows someone found the tool I used to use instead of wkstats. That tool’s graph is beautiful. cc @Whologist up and down eyebrows gif here nyaa.
By the way, I found what I searched.
https://community.wanikani.com/t/need-advice-for-leech-squashing-%F0%9F%98%A3/20878/6?u=oshin
https://community.wanikani.com/t/need-advice-for-leech-squashing-%F0%9F%98%A3/20878/7?u=oshin
Oshin is bowing Japanese bow to @tmahrt 先輩 for the inspiration among others.