Following a discussion and great help from the LDAP patch developer, Ismael, on the French side of the forum, I wrote an article in English to write down all the required steps to get LDAP authentication on top of a freshly installed Wallabag instance.
I’d prefer that you link to my git repository or https://www.immae.eu since my github account is only a mandatory account to be able to contribute on github projects (closed environment are closed )
The branch ^ has now two patches. The second one permits to avoid the high-cpu-consuming composer require --update-no-dev -o --prefer-dist fr3d/ldap-bundle