You don't necessarily need an APL-specific keyboard; APL characters can be entered from any regular keyboard, see https://aplwiki.com/wiki/Typing_glyphs https:/

You don't necessarily need an APL-specific keyboard; APL characters can be entered from any regular keyboard, see https://aplwiki.com/wiki/Typing_glyphs https://aplwiki.com/wiki/Typing_glyphs. The advantage of an APL-specific keyboard would be the stickers/caps for maybe a bit of the learning period, but even then, the characters have mnemonics (https://aplwiki.com/wiki/Mnemonics https://aplwiki.com/wiki/Mnemonics).