Almanac Board - Turn your old Android tablet into a smart wall calendar

Hey Product Hunt. I am David, an independent developer. I built Almanac Board because I had an older Android tablet just gathering dust in a drawer. It still worked fine, but it felt too slow for heavy modern apps. Since I love my MagicMirror setup at home, I wanted something simple that just works without a complex DIY build. What it does: Almanac Board transforms unused Android tablets into dedicated digital wall calendars and home dashboards. It is designed specifically for larger screens, giving households and individuals a clean overview of their schedule right from the kitchen wall or hallway desk. Key Features and Tech Specs: Flexible Calendar Sync connects seamlessly with Google Calendar, Microsoft Outlook, Apple iCloud, and standard webcal or ICS links so your schedule updates automatically. Color Coding and Birthdays help you keep track of different family members easily with color coded events, alongside an automatic birthday tracker with age calculation. Privacy First design means all calendar data is processed and stored locally on your device with no cloud storage or unnecessary account setups required. Revive Old Tech performance optimization features a smart cache strategy that runs smoothly on older hardware supporting Android 8.0 and newer. The Command Center unlocks an advanced premium sidebar featuring a built in clock, live weather forecasts, RSS news feeds, and more. It is my first app ever, and it is available now on Google Play. I built this to solve a real everyday problem, and I would love to hear what you think, answer any technical questions about how I built it in Kotlin, or hear your feedback. Thanks for checking it out.