This is a library for generating paramaterized split-hand, concave, columnar, ergonomic keyboards in the spirit of the Dactyl, but written from the ground up in ocaml, rather than clojure. Dometyl also takes inspiration from a lineage of Dactyl-like keyboards that evolved from the original script, including the Compactyl itself a fork of forks of dactyl-manuform keyboards with many accumulated features, and the Skeletyl, a sleak, low-profile, open-case design built in Fusion360.

The name (rubber) dometyl comes from this library's introduction of a means of building split-hand concave keyboards with rubber domes. Taking advantage of the readily available Niz housing and sliders, and third-party non-sheet rubber domes (e.g. DES BKE DOMES), we can build dome-with-slider switches of our own without canabilizing an existing Topre or Niz board. You may be thinking that we still need expensive to obtain conical springs, and difficult to design (and very difficult to make use of inside a curved case) electro capacitive sensing PCBs to complete the picture, but then you would be wrong! One need simply glue magnets to sliders, and glue hall-effect sensors into a case, and voila the rubber dometyl is born.

The relevant code for generating the required keyhole can be found in the Niz module, the first example of a board configuration using them here, and the build showcase for it here.

Of course, if you aren't an insane person, the dometyl generator also supports more civilized Mx and Choc switch options.