Installing GrapheneOS on a Pixel 4a

Instructions derived from https://grapheneos.org/install/cli Download Developer Tools sudo apt install android-sdk-platform-tools-common sudo apt install signify-openbsd echo "alias signify=signify-openbsd" >> ~/.

Korg Nano

SUBSYSTEM=="usb", ATTR{idVendor}=="0944", ATTR{idProduct}=="010f", MODE="666" sudo cp 98-korg-nano.rules /etc/udev/rules.d/ sudo chmod 644 /etc/udev/rules.

Setting up OptiTrack

Links http://wiki.ros.org/mocap_optitrack Install sudo apt install ros-melodic-mocap-optitrack Create a rigid body and ensure it is being transmitted from Motiv Edit mocap.

Setup Samba from Bash

Make your folder mkdir ~/happy chmod 0700 ~/happy Set up samba sudo apt install samba sudo nano /etc/samba/smb.

Simple Netplan Config

Example update enp0s3 to match your ethernet interface update ip4 address to match an available address

Start VirtualBox VM as a Service

Steps Ensure you are a member of vboxusers group sudo usermod -a -G vboxusers $USER Create a script cat <<EOT > vbox_vm_start@.

Too Many Authentication Failures?

Received disconnect from ########## port 22:2: Too many authentication failures Add the IdentitiesOnly option to your config file

Ubuntu Prep

In ubuntu Check that you are a member of the following groups

Using Github with two accounts

Instructions Create a new, separate key for each github account

Working with pdfs from the command line

Merge pdfs from Bash sudo apt install pdftk pdftk file1.pdf file2.