I know Ocaml tooling posts are mostly about how to do things or why [more complicated than normal] scenario doesn’t work, but I just did this:
$ opam install caqti-driver-sqlite3
The following actions will be performed:
∗ install conf-sqlite3 1 [required by sqlite3]
∗ install sqlite3 5.1.0 [required by caqti-driver-sqlite3]
∗ install caqti-driver-sqlite3 1.9.0
===== ∗ 3 =====
Do you want to continue? [Y/n] y
The following system packages will first need to be installed:
libsqlite3-dev
Ah, damn. Fair enough - it will need the C headers for the library. Hang on though - it’s not finished running…
<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>
Let opam run your package manager to install the required system packages?
(answer 'n' for other options) [Y/n] y
+ /usr/bin/sudo "apt-get" "install" "libsqlite3-dev"
Nice - knows I’m on Debian and the name of the apt package it wants.
Good work there, opam team - score yourselves one more happy customer.