(replying with more details, because I think it's pretty cool, and I'll definitely try this out)
The linked item is to https://blog.mro.name/2022/08/pwned-diy/, where the author converts the passwords list to a CDB (Constant DataBase) file, a simple, fast lookup database format created by D. J. Bernstein.
The linked item is to https://blog.mro.name/2022/08/pwned-diy/, where the author converts the passwords list to a CDB (Constant DataBase) file, a simple, fast lookup database format created by D. J. Bernstein.
https://cr.yp.to/cdb.html
https://manpages.ubuntu.com/manpages/bionic/man1/cdb.1.html