My Devanagari reading is way too slow (only just started learning), so I created a bookmarklet that transliterates to ISO_15919 using a library called sanscript.js:
https://bookmarkl.ink/bwasty/b841ef42f27e90d9c19567dd6081c59d
Code: lipyantar-language-reactor-netflix · GitHub
This is how it looks:
