Setting gpio for sd card activity led

I am sure this is a simple thing that you would think has been covered plenty, but I swear I have read over countless posts and I cant get this to work. I found this SD card activity external LED - #9 by JackOrms which seems to be exactly what I want, but I cant for the life of me figure out how to get these commands to “import” the dts file ive written. I have put the file in the dt folder under the correct folder for my aml-s905x-cc and run “make” in the dir for the wiring tool, but it doesnt seem to do anything with my file. ive tried putting the dts file in the wiring tool folder and calling it directly with make or ldto, it just says

ive tried the same without ./ and I get the same message. I cant find any information that tells me what my missing step is!!! help appreciated.

You need to put ledactivity in the libre-computer/aml-s905x-cc/dt/ directory and then run make. Afterwards, you can enable by running sudo ./ldto enable ledactivity