throwawayosiu1

I was looking for some APM tools to integrate with my nodeJS SaaS app (NodeJS backend, React Frontend) and I was unable to find any that were open source.

The closest I found was Sentry which is not really an APM tool as much as an exception logging tool. The only other tools that I've found are Raygun and Opbeat - both of which are really nice to use, but I would definitely prefer to support opensource and also host it myself.

What are some open source APM tools that you use?

I am an Android software engineer starting to work on a side project that requires a web app.

On android, I used to use the gui editor to get the rough GUI (layout, size, proportions) I wanted and then finalized it in xml/java.

I was wondering how I could go about doing so on the web?

I started using React + BlueprintJS to get all the components I needed, but everything looks very ugly without having CSS hacks (or custom styles) all over the place.