stack run -- -i FILENAME_GOES_HERE
- or
stack run
which defaults to hello_world
- or
./output/FILENAME_GOES_HERE
-i Provide input file
-o Provide output file
-O Provide output directory
-T Provide temporary output directory (this is for intermediate files)
-I Provide input directory (this is ignored if `-i` is set)
-d Print debug information