A pi2/3/b will work with the MyGMRS software with a supported interface card. The MyGMRS software has not been updated for running on a pi 4 yet. This requires updated boot files. MyGMRS software is like all Allstarlink but modified for its own api’s and features. Hense the link mapping system/dashboard/ node manager. Same foundation but different face. A lot of features are stripped/modified so I wouldn’t think you would just use any other linking software. Your on the right path. Just follow the how to get on MYGMRS doc. Along with getting your node number. It took me sometime. But I hear that if you pay for the pre installed card it’s plug and play and they offer support.
