I wanted to draw your attention to a recent case study we published about DevPark's https://www.fitness365.ru project. Roman Shelomanov and his team have created an XAF powered Web and Windows client with a common core and logic.
You can read the case study here: https://www.devexpress.com/Home/Case-Studies/fitness365/
Should you have an XAF project you'd like us to showcase on our site OR want to share suggestions on how you'd like us to improve your XAF development experience, please email me. Happy XAFIng