how do I run the executable files from Flutter desktop that also store in that app itself, let say if I made a batch file that echo hello worlds. the idea is I don't want the executable file in the app itself. the only thing that I can think of is assets. I want to run the file with Process. start or run. I tried the "workingDirectory" to assets dir but it doesn't work. Any other solution or maybe I do it the wrong way.