This is a demo of a version of Blockly designed for screen readers,
optimized for NVDA on Firefox. It allows users to create programs in a
workspace by manipulating groups of blocks.
To explore a group of blocks, use the arrow keys.
To navigate between groups, use Tab or Shift-Tab.
To add new blocks, use the buttons in the menu on the right.
To delete or add links to existing blocks, press Enter while you're on that block.