[DTownSMR]

that's an excellent idea, but instead of building what already exists elsewhere, maybe the best would be to be able to link to or invoke other apps that display chords. This  way everyone can use the app that they prefer, and you don't have to build chord libraries for all positions, tunings and instruments.

Sounds like you're thinking along different lines than I am. The chordPro standard has a {define:...} directive that explicitly states informat about a specific chord and listing things such as: chord name, starting fret, and fretting per string (and one extension I've seen also allows for noting the fingerings per string). All the information needed to directly generate chord diagrams without the need of some large chord library.