In case anyone else is trying, here are some things I found:
Spoilers
You can make cidre by taking the ‘d’ from the bride and using the cire.
You need a container for it, and the toilet works. You can drink cider from the toilet.
You can take the t from the patin and add it to the roue to get rouet or to the tee to get tete.
You can get the ‘a’ out of ‘cale’ to get a ‘cle’, but there’s nowhere to use it.
I also found the lampe, which gives ‘p’.
Edit:
Okay, I found out that ‘penser ____’ helps a ton, because it gives you words you can use. And I realized that part of the real puzzle is managing the leftover letter. If you want to remove several letters from one word, you have to foist it onto somewhere else.
Editedit: Careful, I tried to undo with ‘annuler’ and it reset the whole game!
With the help of ‘penser’, I was able to make an aile and use it to open the painting.
Another edit:
I’ve been able to make a prow and a poop, but I don’t know what the next part of the ship I need to make is.
I am sorry for the bug with ‘annuler’. It has been found in the beta test and the creator of DonjonFI patch it. There must be a second bug with this command that we didn’t found.
For the where you are stuck : the ship on the pillar, you need to use the object found in this alcove to finish the ship.
If you need an other clue : in this room, you should be able to find a ‘pavé’ ans use it to create an ‘épave’.
I’m glad you have fun and hope it will continue to the end of the game.