I am failing to get it work on a "custom" setup. I run my own server with localhost pointed to the domain, with HTTPS on locally generated certificates.

I tried

    npx @jsx-tool/jsx-tool start --logging --server-host codeinput.com --server-protocol https --server-port 443 --insecure

but got

    [jsx-tool] Proxy server running at http://localhost:4000
    [jsx-tool] Forwarding to https://codeinput.com:443
    [jsx-tool] WebSocket server listening on ws://localhost:12021
    [jsx-tool] LSP worker exited with code 1
    [jsx-tool] Restarting LSP worker...
    [jsx-tool] LSP worker already started
    (node:7881) [DEP0060] DeprecationWarning: The `util._extend` API is deprecated. Please use Object.assign() instead.
    (Use `node --trace-deprecation ...` to show where the warning was created)
    [jsx-tool] Proxy error: unable to verify the first certificate; if the root CA is installed locally, try running Node.js with --use-system-ca
    [jsx-tool] Proxy error: unable to verify the first certificate; if the root CA is installed locally, try running Node.js with --use-system-ca

Maybe you should explain a bit what the server does and what it needs to connect to? why does it need some kind of a "proxy"? I understand you are trying to make a simple one click/command solution but some setups are more complicated than the standard yarn dev nextjs app.