Update electron docs

Author: simolus3

demos/example-electron-node/README.md

@@ -21,7 +21,8 @@ To see it in action:
 1. Make sure to run `pnpm install` and `pnpm build:packages` in the root directory of this repo.
 2. Copy `.env.local.template` to `.env.local`, and complete the environment variables. You can generate a [temporary development token](https://docs.powersync.com/usage/installation/authentication-setup/development-tokens), or leave blank to test with local-only data.
    The example works with the schema from the [PowerSync + Supabase tutorial](https://docs.powersync.com/integration-guides/supabase-+-powersync#supabase-powersync).
-3. `cd` into this directory. In this mono-repo, you'll have to run `./node_modules/.bin/electron-rebuild` once to make sure `@powersync/better-sqlite3` was compiled with Electron's toolchain.
+3. `cd` into this directory. In this mono-repo, you'll have to run `./node_modules/.bin/electron-rebuild` once to make sure `better-sqlite3` was compiled with Electron's toolchain.
+   Sometimes that doesn't work, you can also go to `node_modules/better-sqlite3` and manually run `HOME=~/.electron-gyp node-gyp rebuild --target=37.0.0 --arch=arm64 --dist-url=https://electronjs.org/headers` (or `--arch=x64` depending on your machine).
 4. Finally, run `pnpm start`.
 
 Apart from the build setup, this example is purposefully kept simple.