This project is not the only one and is not the most important.
The Panjab Digital Library digitises manuscripts and periodicals and puts them online free. The 1947 Partition Archive recorded thousands of oral histories before the generation went. The Citizens' Archive of Pakistan does the same on the other side. The Partition Museum at Amritsar collects objects and testimony.
The Desh Bhagat Yaadgar Hall at Jalandhar holds the Ghadar movement's own records, assembled by its survivors.
Individual researchers, village history groups, YouTube channels that find people's ancestral villages across the border, and diaspora family history projects are doing more of this work than any institution.
Punjabi University's transliteration tools make the two scripts readable to each other and were built by an underfunded department.
Anyone starting should look at what these have already done before beginning, and should give whatever they collect to one of them rather than leaving it on a phone.
The work is distributed and unfunded and it is happening, and the only thing missing is scale.
The Panjab Digital Library, the Partition Archive, the Sikh Heritage projects, the university folklore departments and a number of individual photographers and writers are all working on parts of this.
They do not talk to each other much and their material sits in separate places with separate access rules.
A shared index of what has already been collected would save every future project a year. Nobody has built one and it is the least glamorous and most useful thing available to be done.