Cloud-hosted pipeline debugging (no local Docker required)

[Photobombastic]

Problem

PipeStep currently requires Python, Docker Desktop, and a terminal running locally. This works well for developers who already have that setup, but it's a barrier for:

• Teams with restrictive IT policies that don't allow Docker Desktop
• Developers on lower-spec machines where Docker is slow
• Quick debugging sessions where spinning up Docker feels heavy
• Developers who just want to paste a YAML and debug in a browser — no install at all

Possible approaches

• Web-based UI — paste your workflow YAML into a browser, debug in a hosted container (zero local setup)
• Hosted service — we run the containers (simplest UX, requires infrastructure)
• Bring your own server — point PipeStep at a remote Docker host via DOCKER_HOST (works today in theory, untested)
• GitHub Codespaces integration — run PipeStep inside a Codespace that already has Docker

Status

Exploring. Would love input from anyone who's tried running PipeStep in a remote Docker environment, or who wants a browser-based version with no local install.

If this would unblock you, please 👍 this issue or leave a comment describing your setup.