> wrangler

Is actually a really good example of why TS was a bad choice for Cloudflare. It made sense for their initial version, because the only programs that you could run on Cloudflare Workers were themselves JavaScript scripts, so it was a reasonable expectation that developers were already using npm/yarn/pnpm to install tools and manage dependencies.

But now, Cloudflare Workers supports containerized workloads and Python workloads. So even if your project doesn't use TS, you are still expected to set up some kind of JS toolchain for your project, just for wrangler.