# Queue.len() ![Queue.len()](https://i.imgur.com/8JKbm6P.png) A 65% keyboard with multiple layout support. * Keyboard Maintainer: [Lental](https://github.com/lental) * Hardware Supported: Custom PCB * Hardware Availability: Private Group Buy * Keyboard Layout Editor [Link](https://www.keyboard-layout-editor.com/#/gists/d54fc38f606ce3e990a88044e9b71858) Make example for this keyboard (after setting up your build environment): make dotlen/queue:default Flashing example for this keyboard: make dotlen/queue:default:flash 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). ## Bootloader Enter the bootloader in 3 ways: * **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard * **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead * **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available