mirror ubuntu 20.04

deb https://mirror.0x.sg/ubuntu focal main universe multiverse
deb https://ubuntu.tuxuri.com/ubuntu focal main restricted universe multiverse
deb https://ubuntu.tuxuri.com/ubuntu focal-backports main restricted universe multiverse
deb https://ubuntu.tuxuri.com/ubuntu focal-updates main restricted universe multiverse
sudo apt-get install apt-transport-https

wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > packages.microsoft.gpg
sudo install -o root -g root -m 644 packages.microsoft.gpg /etc/apt/trusted.gpg.d/
sudo sh -c 'echo "deb [arch=amd64 signed-by=/etc/apt/trusted.gpg.d/packages.microsoft.gpg] https://packages.microsoft.com/repos/vscode stable main" > /etc/apt/sources.list.d/vscode.list'

sudo apt-get install code # or code-insiders