According to Wikipedia[0]:

> In Hinduism, the right-facing symbol (clockwise) (卐) is called swastika, symbolizing surya ("sun"), prosperity and good luck, while the left-facing symbol (anti-clockwise) (卍) is called sauwastika, symbolising night or tantric aspects of Kali.

[0] https://en.wikipedia.org/wiki/Swastika

Their github avatar has similar iconography:

https://github.com/kernc

And this other user has the same avatar and explicitly says they are buddhist.

https://github.com/neokin

no other signs anywhere I can see that give any cause for concern.

Yep! I speak from experience as an Indian.

I'd say having both of them increases the chance of them being Hindu swastikas. The nazis used only a single direction.