Re: dependency management and build tooling: these days I'm using opam-monorepo (https://github.com/tarides/opam-monorepo https://github.com/tarides/opam-monore

Re: dependency management and build tooling: these days I'm using opam-monorepo (https://github.com/tarides/opam-monorepo https://github.com/tarides/opam-monorepo, previously known as duniverse) to manage dependencies and it's working out pretty well for me. It vendors all dependencies into a node_modules-like directory inside the projects and writes an opam-compatible lockfile, and it builds all the dependencies using dune. For the most widely used packages that don't already use dune it uses an overlay containing dune ports at https://github.com/dune-universe/opam-overlays https://github.com/dune-universe/opam-overlays.