dev meeting 20231213

Present: @emillon @gridbugs @leonidas-from-xiv @moyodiallo

lockdir compatibility (@gridbugs)

• how do we determine whether a given lockdir is compatible with the current system?
• existing systems:
  • opam (lock, switch export): no particular checks but the solver is always called so it will fail
  • opam-monorepo: no checks, it will just unpack the packages and dune might fail at build time
• dune dumps the variables that were evaluated during locking into the lockdir
• these assumptions can be checked when using the lockfile

making ocamlfind relocatable (@emillon)

• ocamlfind captures paths at configure time and uses them at runtime
• need to make this relocatable
• we also need to ensure that for "system" installations this continues to work

JS features upstreamed (@emillon)

• some progress at JS regarding dune losing parallelism, and caching of directory targets. these will be upstreamed soon