The Ready State Virtual Mobility Coach is like having a virtual Kelly Starrett in your pocket.
Sounds good Kevan,
A couple others which address sitting. There are several if you search the archive.
Why Sitting Wrecks Your Mad Hip Action
Episode 251: High Skilled Sitting/Abdominal Bracing. (Volume is low on this video)
Episode 91: Mobilize In the Position of Death by Chair