The biggest barrier to trying a custom CPU? Installing the toolchain. Nobody wants to git clone and build complex binaries just to test a small ISA. So for my CPU (Mrav), I moved the tooling into the browser. I wrote the assembler in Go. Using WASM, I run the exact same logic on the web as I do on the CLI. The workflow is simple: Write: Core logic in Go. Expose: Use syscall/js to bind functions to the window. Build: Use Bazel's go_cross_binary to target wasm_js. Now, anyone can write Mrav assembly and generate machine code instantly. Zero install. Here is the step-by-step breakdown of how this works 🔗: popovicu.com/posts/running-g…