Thanks for making a more efficient user interface to SQL with PRQL syntax and an additionally nice GUI and IDE!
Please consider an additional menu option and/or button on the GUI to see the actual SQL code generated from the PRQL parser parsing the user's .pqrl query. One can see the SQL code in the R binding of PRQL ("prqlr" package on CRAN) by typing:
prql_compile('prqlstring') %>% cat()
but that requires one to be working in a R environment already. If primarily working with databases would seem quicker to have an option to be able to use qstudio as as a PRQL to SQL translator that one could then paste into one's SQL work environment (perhaps if one's work environment doesn't permit the integration of PRQL directly).