Something like kate advanced find/replace (regex, multiple files) which allows saving searches to use again later?
Something similar to VSCode's ability to open searches in an editor? Looks like you can save and reopen them too.
I wish writing SQL queries was more popular than ORMs
LINQ looks great with the query syntax:
var productsByCategory =
from p in dbContext.Products
where p.Price < 50
group by p.Category.Id
select p;