Tools and libraries I do LOVE,... most of the time,... most of them:
Cross-platform GUI apps
Visual Studio Code - we can no longer say that Microsoft is not able to provide a good IDE. Atom was good, but code is great.
Beyond Compare - best ever diff tool.
iTerm -- version 3.3 is even more awesome than ever, I really need to write about it. A primary blocker switching desktop from MacOS to Linux .
Textual - IRC client. While I hate irc protocol, I need to use use it for work.