Any chance of getting a Classic/WotLK version or some rough guidelines how to adapt it?

Retail version apparently fails because GetSpecialization changed, original WotLK version fails because it tries to register some probably no longer existing event.

Maybe helpful resources:

• https://wowpedia.fandom.com/wiki/Porting_addons_to_Classic
• https://github.com/tstirrat/LibClassicSpecs

I absolutely loved this addon as druid back in the days and would prefer it over e.g. Healbot or Vohdo raid frames.