I give my time here because I get so much more in return.
Useful things I've written that might help you:
ts-iterable-functions: A TypeScript library for working with iterable sequences.
ts-functional-pipe: A small but useful TypeScript library for the composition of functions.
BkTree: a c# implementation of a Burkhard-Keller tree for indexing data in metric spaces.
ComparerBuilder: A small c# library for easily creating complex
IComparer<T> instances that compare multiple properties. See this answer for a rationale.
ts-comparer-builder: A typescript library for creating complex "compareFunctions" for use with
Array.sort. Very similar to ComparerBuilder above.
ts-bin-heap: A typescript binary-heap implementation. Very handy for priority queues, which in-turn are very useful for search algorithms such as A*.
Things I've written for other people:
pShare client (see also) for Duality solutions: A cross-platform, blockchain and WebRTC based file-sharing platform, written with TypeScript, React and Redux, using electronjs.