hi, i needed this functionality for using the webview library with node/deno/bun - basically all single threaded event loop driven runtimes. i thought i'll create a pr for this in the hope that it will get upstreamed
this will fix:

webview/webview_deno#194
webview/webview_deno#185

tr1ckydev/webview-bun#31
tr1ckydev/webview-bun#10

and probably some more