After releasing 3.0 version of Insync, you are silently remove very useful insync-headless tool! Please give back it, because it is very-very useful for sync Google Drive on servers without GUI, and even on desktops (for start syncing in background on computer boot, not only after user login). Controlling Insync daemon via cli commands also is more powerful for automating via scripts!
So, please answer, did you plan to give back Insync 3.0 headless version? And can you provide some estimate time for release?