About ATD, I’ve been a big user for quite many years in both OCaml and Rescript, but the situation feels a bit suboptimal now and some of the rescript users would like to have a dedicated mode for rescript and I think it would totally make sense now that we have optional fields in ReScript for example. The (de)serialization would also be much more efficient using the new JSON bindings allowed by rescript untagged variants and using arrays instead of lists.
I totally understand how complicated the situation can be for you now but as zth said, it’s really not a decision we’ve made lightly.