Hopx - Secure Code Sandboxes

Can Hopx sandboxes run Python, JavaScript, Go, and Bash all in the same environment?

Hopx supports Python, JavaScript, Bash, and Go, but each sandbox runs a single language execution at a time. You can switch languages between runs or use Bash as a wrapper to orchestrate multi-language workflows within the same sandbox instance.

How long can a job run in a Hopx sandbox before it times out?

Hopx imposes no execution time limits, so long-running jobs can execute for hours, days, or weeks without interruption. This makes it suitable for extended ETL pipelines, background workers, and ML experiments that require continuous operation.

Does Hopx sandbox startup time really stay under 100ms, or does it vary by language and workload?

Hopx achieves ~100ms startup times using prebuilt Firecracker microVM snapshots. The startup window is consistent across languages; what varies is the time to load and execute your actual code after the sandbox boots, which depends on your script's complexity and dependencies.

Can I expose a service running in a Hopx sandbox to the public internet?

Yes, Hopx generates public URLs that expose ports from your sandbox to the internet. This allows external services or webhooks to communicate with applications running inside the sandbox, though traffic flows through Hopx's routing layer.