This page contains an experimental version of a 
 program that computes the 
collapsed hat  Grid homology of links  in lens spaces with integer coefficients 
(when the grid number $n$ is < 5). 
 
 A sample session should start automatically; you can then input the parameters (grid number and the two positive 
coprime integers determining the lens space) and  press the "Update" button. 
Note that it might take a long time if you choose knots with big parameters (i.e. $n >3$). You can find here the instructions for this program.
If something does not work, or if you have any comment please let me know!