This looks like it enables functionality very similar to specter. https://github.com/nathanmarz/specter
Except
1. Much easier to grok syntax/easier learning curve
2. Not as powerful/generic
Except
1. Much easier to grok syntax/easier learning curve
2. Not as powerful/generic
The cost of abstraction should not be ignored, and that's why a lib like supdate sometimes makes sense before reaching out to Specter, lenses etc. (although I love those too!)