A library for building dynamic webapps, using Js_of_ocaml.

Bonsai is a UI library for building performant, reactive web applications in OCaml, partly inspired by Elm. It is used to build almost all web applications inside Jane Street, everything from the corporate directory to tools that monitor and interact with our trading systems. A simple Bonsai component with a little interactivity looks like this:

AI-assisted SAST, SCA and Secrets Detection. Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.

Semgrep is a fast, open-source, static analysis tool that searches code, finds bugs, and enforces secure guardrails and coding standards. Semgrep supports 30+ languages and can run in an IDE, as a pre-commit check, and as part of CI/CD workflows.

• Sempgrep @ GitHub.

Related contents:

• Keeping Secrets Out of Logs @ allan.reyes.sh.
• Blueprinting Security in CI/CD: Building Trust Through Open Source @ CD Foundation.

OpenDAL represents Open Data Access Layer. Our vision is One Layer, All Storage.

OpenDAL (/ˈoʊ.pən.dæl/, pronounced "OH-puhn-dal") is an Open Data Access Layer that enables seamless interaction with diverse storage services.

OpenDAL's development is guided by its vision of One Layer, All Storage and its core principles: Open Community, Solid Foundation, Fast Access, Object Storage First, and Extensible Architecture.

• OpenDAL @ GitHub.

Related contents:

• AWS S3 SDK breaks its compatible services @ Xuanwo's Blog.

Dune is a build system for OCaml projects. Using it, you can build executables, libraries, run tests, and much more.

• Dune @ GitHub.

Related contents:

• How we accidentally built a better build system for OCaml @ Jane Street Tech Blog.

Reason lets you write simple, fast and quality type safe code while leveraging both the JavaScript & OCaml ecosystems.

Reason @ GitHub.

The Universal Plug-in System. make all software programmable. Extend from within. Extend anything with WebAssembly (wasm).

Run WebAssembly extensions inside your app. Use idiomatic Host SDKs for Go, Ruby, Python, Node, Rust, C, C++, OCaml, Haskell, PHP, Elixir/Erlang, .NET, Java, Zig & more (others coming soon).

Extism @ GitHub.

A large-scale build tool. The successor to Buck. Ready for users ∈ {C++, Python, Rust, Erlang, OCaml}.

Buck2, a large scale, fast, reliable, and extensible build tool developed and used by Meta. Buck2 supports a variety of languages on many platforms.

Buck2 @ GitHub.