I spent today getting an Electron app to run smoothly on Linux, and it turned out to be a mix of small gotchas and straightforward fixes. If you're about to port your own Electron app, here are a few things I learned.
First, the port number. In my rvs-work-inbox app, the default port was fine on macOS but clashed with a service on Linux. I had to change it in the main process config. Lesson: don't assume your port is free across OSes. Check common conflicts early.
Second, the README. I updated screenshort-app's README with Linux install instructions. That sounds trivial, but it forced me to document the exact dependencies and build steps. On Linux, you often need extra system libraries (like libgtk-3 and libnotify) that aren't required on macOS. If you don't write them down, your future self (or your users) will struggle.
Third, testing with Postman. I used it to verify API endpoints that the Electron app hits. On Linux, the app's network stack behaves a bit differently, especially with proxies or self-signed certs. Postman helped me isolate whether issues were in the app or the environment.
Finally, I ran into a phpMyAdmin cookie issue while debugging a local setup. That wasn't directly about Electron, but it reminded me that Linux environments often have stricter cookie and permission settings. Always check your local server config.
Porting isn't glamorous, but it's mostly about being methodical: test each piece, document everything, and don't assume cross-platform behavior. The good news is that Electron's tooling is mature, so most problems have a known fix. Just be ready to read a few forum threads and tweak your configs.
If you're doing a Linux port, start with the port, then the dependencies, then the docs. You'll save yourself a lot of head-scratching.
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