It's FOSS takes a look at MuditaOS, a minimal open source mobile operating system for feature phones.

MuditaOS: A Beautiful and Minimal Open Source Mobile Operating System for Feature Phones

Find the always connected smartphones too distracting and privacy invasive? Let's go back to the pre-2010 era and enjoy the simplicity of feature phones but with a modern design with MuditaOS.

MuditaOS: A Beautiful and Minimal Open Source Mobile Operating System for Feature Phones