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https://github.com/TanStack/router/issues/7383

The primary email features we wanted and used for our own agent system:

1. Email threading stays consistent with agent conversation threading

2. Human in the loop review for outbound emails (especially during testing phase)

3. Quick onboarding/offboarding email addresses for agents within minutes

4. Websocket for local agents and at-least-once webhook delivery for Cloud agents

Not yet: DMARC (only SPF/DKIM today), scoped API keys, HA/multi-region (single VM + single Postgres), app-layer email data encryption, compliance attestations (SOC 2/HIPAA).

GitHub: https://github.com/Mnexa-AI/e2a

Hosted: https://e2a.dev/

Appreciate any feedback / contributions.

I tried to keep it super lightweight, no build steps, or dependencies, and now that its open source, I'm hoping people can build things on top of it that arent possible with closed source tools, like complex custom agent workflows.

Some screenshots: - https://github.com/ab-613/OpenGravity/blob/main/examples/scr... - https://github.com/ab-613/OpenGravity/blob/main/examples/htm...

What it's made from:

- Pure Vanilla JS: no react, vue, or build step. Built entirely in plain HTML/CSS/JS to keep it super lightweight.

- WebContainer API and xterm.js: Instead of faking a terminal, I (after much pain) hooked up the WebContainer API so the AI agent has a real, in browser linux environment to run shell commands, install dependencies, and edit local files.

- BYOK (Bring Your Own Key): API key ALWAYS stays in localStorage.

Whats currently happening:

- It works, but it's an alpha. The AI can proactively start projects going properly and edit files, but because I built this over a few days before my exams, a lot of the UI dropdowns and buttons are currently just hardcoded placeholders.

- I’m open sourcing it early because I think the foundation of a Vanilla JS + WebContainer IDE is really strong, and I'd love to see where the community takes it while I'm doing my exams.

- Live demo: https://opengravity.pages.dev (Zoom out to 80% if not full screen. It will prompt for a gemini api key on load). Start by uploading a folder, then you can fiddle with the terminal and agent, and see how it goes!

Would love to hear feedback on the code, the WebContainer integration, or how to improve the agent loop!

https://www.nytimes.com/2026/05/11/us/politics/google-hacker..., https://archive.ph/I4Ui5

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