Also, since this it's going to be a top search in node-red as executable I'll link some post dedicated to that
Create node-red flow into Executable package format Don't solve the executable part, but talk a bit about how to pass data for other applications
How to package node-red project into an executable file? [SOLVED] This thread is quite old but have a couple of solutions, first one electron and the other one an alternative for installing multiple instances and data sharing... it's not exactly an exectuable but have some recipes to use node-red inside electron.