I have high myopia that is progressively getting worse so started working on building an app development platform for my Kobo eReader so that I can live without my mac and phone. https://github.com/BandarLabs/Cobalt

Have built the SDK and some apps like an HN Client, ChatGPT client, Claude Code permissions sidekick, RSS Reader, some games etc. (all in the same above repo)

It has 8x less powerful hardware than a modern raspberry pi but runs Linux with an eink display, wifi bluetooth and a good battery life for $100 or something.