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Electrobun: Cross-platform desktop applications written in TypeScript

(electrobun.dev)
131 points CharlesW | 1 comments | 20 Nov 24 23:58 UTC | HN request time: 0.002s | source
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bobajeff ◴[21 Nov 24 03:18 UTC] No.42200767[source]▶
>Security and Performance with isolation between the main and webview processes

That's one of the performance characteristics I'm afraid will hinder certain applications.

It sounds like you need to use a IPC bridge to share data between the main process and renderor. Which means copying all the shared data. Like if I wanted to use ffmpeg for decoding video then each frame I'm waiting for a the decoded image to be copied before rendering it.

replies(2): >>42200780 #>>42200881 #
1. yoav ◴[21 Nov 24 03:42 UTC] No.42200881[source]▶
Originally I had it going via browser -> postmessage -> zig -> bun via named pipes and then bun -> zig via named pipe -> js via evaluate js.

I’m building https://colab.sh/ with electrobun and that rpc was pretty slow when trying to load multi MB files in the code editor.

Last week I added an encrypted socket rpc option directly between bun and browser.

Loading a 2MB file went from a few seconds to 400ms.

I made it so that in contexts where CORS allows it automatically upgrades to the socket based faster RPC.

That’s via RPC though. electrobun also exposes a custom views:// scheme in the browser context that can load files directly from specific sandboxed places in the file system. More to improve there but for a very big file you’d be better off writing it to the file system that would be much faster.