Side Impactor brings iPhone sideloading to browser

This is a clever portability win, but it also shifts the trust and compatibility burden into the browser stack and whatever relay/service the flow depends on.

• –The project is genuinely browser-first: the README describes a pure frontend IPA signing page with WebUSB pairing and WASM-based signing components.
• –That makes sideloading dramatically easier for people who do not want a Mac or desktop utility, especially on mixed-device setups.
• –The tradeoff is obvious: you still need an Apple Developer account, a WebUSB-capable browser, and a workflow that survives Apple-side signing changes.
• –For most users, the browser UI is the main product; for advanced users, the interesting part is the architecture that pushes signing, USB device interaction, and IPA injection into the client.
• –Because this is open source and still very new, reliability, revocation handling, and long-term maintenance matter more than the demo.