Xauth not setup: failed creating new xdo instance

[mttbrt]

Hello, when I run the first time sudo blink-server I got this errors in the server after using swipe area:

No protocol specified
Error: Can't open display: (null)
Failed creating new xdo instance

I found a solution that worked for me:

1. Add these instructions to ~/.bashrc file:

   export DISPLAY=:0 
   export XAUTHORITY=~/.Xauthority

2. Apply changes:

   source ~/.bashrc

3. Remove old .Xauthority file

   cd ~
   rm .Xauthority

4. Create a blank .Xauthority file

   touch .Xauthority

5. Generate a new .Xauthority file:

   xauth generate :0 . trusted

6. Create a new magic-cookie key

   randomkey=`/usr/bin/ksh -c 'echo $(( $RANDOM * $RANDOM * 2 ))'` 

7. Add a new entry for another server

   xauth add ${HOST}:0 . $randomkey

8. Run the server

   xhost +local:
   sudo blink-server

If someone has a better solution please let me know, I'm just a beginner in Linux environment.