# Flashing Instructions KMK sits on top of an existing CircuitPython install, flash that for your board as appropriate (see [Adafruit's documentation](https://learn.adafruit.com/welcome-to-circuitpython/installing-circuitpython), though it doesn't cover all CircuitPython boards - you may need to glance around the CircuitPython source or ask on Discord). We primarily target CircuitPython 4.0-alpha1 to 4.0-alpha2. You'll only need to flash CircuitPython once (unless we update our baseline supported version). After CircuitPython has been flashed, a `CIRCUITPY` drive should show up on your computer most likely. If not, check out the troubleshooting section below. # Windows Currently, we do not have an official "flasher" for windows. You can manually install it fairly easily and we recommend checking out the support page to join the community if you have any questions. An actual tool is in development. Alternatively, you can flash from any linux like tool set (Cygwin, WSL, ect) using the Linux guide below. # Mac Until an interactive installer is created, please follow the linux instructions replacing /mnt with /Volumes # Linux While in the directory for kmk, simply run this, changing the mount point and keymap name to whatever is appropriate. ```sh make MOUNTPOINT=/mnt/CIRCUITPY USER_KEYMAP=user_keymaps/nameofyourkeymap.py ``` # Troubleshooting ## Windows Please check out our support page to get in contact with us and the community and we can gladly help you out. ## Mac Please check out our support page to get in contact with us and the community and we can gladly help you out. ## Linux/BSD Check to see if your drive may have mounted elsewhere with a gui tool. Most will give you the directory in the GUI. If it's not mounted, you can read up on how to mount a drive manually [here](https://wiki.archlinux.org/index.php/File_systems#Mount_a_file_system) It would look something like this `sudo mount -o uid=1000,gid=1000 /dev/sdf1 ~/mnt` If you still are having issues, check out our support page to see where you can come say hi and the community will gladly help you out.