There's a blog - An introduction to Monoids available here https://blog.axosoft.com/monoids-practical-category-theory/

There's some information leading into coding available here

https://fsharpforfunandprofit.com/posts/monoids-without-tears/

There's more information here this time in JavaScript https://marmelab.com/blog/2018/04/18/functional-programming-2-monoid.html

Not sure what level of information you are seeking.

Hope this helps anyway.