- password generator utility/library
-- incorporate with https://github.com/tredoe/osutil ?
-- cli flag to dump flat hashes too
--- https://github.com/hlandau/passlib
-- incoprporated separately; https://git.r00t2.io/r00t2/PWGen (import r00t2.io/pwgen)

- unit tests

- constants/vars for errors

- func and struct to return segregated system-level env vars vs. user env vars (mostly usable on windows) (see envs/.TODO.go.UNFINISHED)
-- https://www3.ntu.edu.sg/home/ehchua/programming/howto/Environment_Variables.html
-- windows:
--- https://docs.microsoft.com/en-us/windows/deployment/usmt/usmt-recognized-environment-variables
--- https://pureinfotech.com/list-environment-variables-windows-10/
--- https://gist.github.com/RebeccaWhit3/5dad8627b8227142e1bea432db3f8824
--- https://ss64.com/nt/syntax-variables.html
-- linux/XDG:
--- https://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html
--- https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
-- macOS:
--- https://ss64.com/osx/syntax-env_vars.html

- validator for windows usernames, domains, etc. (for *NIX, https://unix.stackexchange.com/a/435120/284004)
-- https://docs.microsoft.com/en-us/troubleshoot/windows-server/identity/naming-conventions-for-computer-domain-site-ou
-- https://support.microsoft.com/en-us/topic/2dc5c4b9-0881-2e0a-48df-f120493a2d3e
-- https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/-2000-server/cc959336(v=technet.10)?redirectedfrom=MSDN
-- https://stackoverflow.com/questions/33078854/what-is-the-regex-for-windows-domain-username-in-c

- finish net