So I assume, that means you are now somehow familiar to the forum.
Regarding your garage thing, you can make a thread on Goods board. This is self explanatory.

Let's move on to your photography service, you can post your service details on Services board or Service Announcements since photography is a kind of service, it might also fall on goods category. Your choice.

Lastly, you can also make offer your dev skill on services, tho most of the time you can make a thread or find someone that are looking for this kind of service.
Here: Project Development.

Goodluck and I am hoping for your success!