Ask HN: Need Help? Willing to help?

Last month's HMO (Help Me Out) thread[0] was well received. Many said they'd like to see a thread like this every month. So here's the May edition of HMO: Help Me Out.[1]

Need help with something? Write "HMO" followed by details.

Willing to help others? Write "Let Me Know" followed by your areas of interest.

[0] https://news.ycombinator.com/item?id=7573172

[1] Credit to Tom Critchlow for the idea: http://tomcritchlow.com/post/82380207991/let-me-know-how-i-can-help