Factory pattern can return a mock type for testing or a production type, as needed, which makes it possible to unit test the code that uses the produced object.

This quick guide explains it well. Then it improves on it by explaining dependency injection.

https://github.com/google/guice/wiki/Motivation

Both Oxford English Dictionary and Merriam-Webster agree that “nitch” was the correct pronunciation in both British and American English until very recently. You already linked Merriam-Webster, so here’s O.E.D:

N.E.D. (1907) gives only the pronunciation (nitʃ) /nɪtʃ/ and the pronunciation /niːʃ/ is apparently not recorded before this date. H. Michaelis & D. Jones Phonetic Dict. Eng. Lang. (1913), and all editions of D. Jones Eng. Pronouncing Dict. up to and including the fourteenth edition (1977) give /nɪtʃ/ as the typical pronunciation and /niːʃ/ as an alternative pronunciation. The fifteenth edition (1991) gives /niːʃ/ in British English and /nɪtʃ/ in U.S. English.

(N.E.D is the original name of the O.E.D. “/nɪtʃ/” is pronounced “nitch” and /niːʃ/ is pronounced “neesh”.)

FormLabs, but they start at $2500.

https://formlabs.com/3d-printers/catalog/

ALGOL-60 had its own keyboard (sort of): https://retrocomputing.stackexchange.com/questions/16082/was-there-an-input-device-capable-of-entering-all-algol-60-symbols-with-correct

Another that’s been around forever and still has an active community: GemStone IV

For meetings, https://meet.jit.si/ is like Zoom or MS Teams but open source and free. You don’t even need to create an account.