To program , first you must get the right costume as shown on the cover of this...
To program #Forth, first you must get the right costume as shown on the cover of this book.
https://openlibrary.org/works/OL16992077W/FORTH_on_the_Atari?edition=key%3A/books/OL25570137M
Self-replies
Yes, this is gatekeeping, but the Guild of Forth programmers has traditions that must be respected.