1. [Solder](solder/): 06/2021. Atmega32u4 soldered keyboard. Sold under the name "Krush60" with krush keyboard case. Compatible with some 60% case, Singa, Bakeneko.
**Firmware files are SPECIFIC to each board. Firmware files from one, will not work on the other.** Please use the `.hex` or `.bin` appropriate for your board.
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).