The DsTau (NA65)  experiment is under preparation now. It will take data in 2021 and 2022  with SPS  400 GeV/c  proton beam. In 2017 the beam test runs were performed to validate the experimental technique. In 2018 a pilot run was performed to take 10% of the total intended data sample. Those data are being analysed now. You can find more detail about the modern use of nuclear emulsion, the DsTau setup and first results at dedicated pages.