A redesign of the symmetrical 60% keyboard.

• 60% layout
• 7u space bar
• Split backspace
• Arrow keys (Up is mod-tap on the right shift)
• No split right shift

• https://github.com/Unified-Daughterboard/UDB-C-JSH
• https://github.com/kkatano/bakeneko-60
• https://github.com/takishim/mikeneko65
• https://github.com/tominabox1/Le-Chiffre-Keyboard
• https://github.com/sporkus/le_chiffre_keyboard_stm32
• https://github.com/joe-scotto/scottokeebs/tree/main/Extras/ScottoModules/STM32F072CBT6
• https://www.st.com/resource/en/application_note/an4080-getting-started-with-stm32f0x1x2x8-hardware-development-stmicroelectronics.pdf
• https://www.st.com/en/evaluation-tools/32f072bdiscovery.html
• https://microfan.shop/products/stm32f072-mini-r1
• https://github.com/ShaneTWilliams/stm32-dev-board
• https://github.com/bennymeg/Fabrication-Toolkit
• https://github.com/Salicylic-acid3/KiCAD_FootPrint