Package launchd

Failed to find a solution:

no platform:
2025-02-03 23:22.33 [INFO] Solving for ocaml-base-compiler, ocaml,
                           launchd using opam_repository_commit f872de4b7a2f4b7ccc24dfe491575cabe8c9fabe

2025-02-03 23:22.37 [INFO] base: eliminated all possibilities in 1.44 s

2025-02-03 23:22.37 [INFO] = base =

2025-02-03 23:22.37 [INFO] Can't find all required versions.
Selected: ocaml-config.3 ocaml-options-vanilla.1
          launchd&ocaml&ocaml-base-compiler ocaml-variants
          ocaml-base-compiler ocaml-base-compiler
- launchd -> (problem)
    User requested = 1.3
    No usable implementations:
      launchd.1.3: Availability condition not satisfied
      launchd.1.2: Rejected by user-specified constraint launchd (= 1.3)
      launchd.1.1: Rejected by user-specified constraint launchd (= 1.3)
      launchd.1.0: Rejected by user-specified constraint launchd (= 1.3)
- ocaml -> ocaml.5.1.1
    User requested <= 5.1.1
- ocaml-base-compiler -> ocaml-base-compiler.5.3.0
    User requested >= 4.04.1
- ocaml-compiler -> (problem)
    ocaml-base-compiler 5.3.0 requires = 5.3.0
    Rejected candidates:
      ocaml-compiler.5.3.0: Requires ocaml = 5.3.0
      ocaml-compiler.5.3.0~rc1: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~beta2: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~beta1: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~alpha1: Incompatible with restriction: = 5.3.0
      ...
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.4.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0~rc1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0~beta2+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...