# ALETH42 ![ALETH42](https://i.imgur.com/6hJVBQl.png) 40% keyboard with rotary encoder (optional) * Keyboard Maintainer: [monksoffunk](https://github.com/monksoffunk/) [@monksoffunkJP](https://twitter.com/monksoffunkJP) * Hardware Supported: ALETH42 PCB * Hardware Availability: [twitter](https://twitter.com/monksoffunkJP), [Booth](https://25keys.booth.pm/items/2420095) Make example for this keyboard (after setting up your build environment): make aleth42:default See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).