Your instance is still on 0.17.4

The version 0.33 of Lemmy should still be compatible. You may be able to get it working directly fron the github releases or from a store allowing older versions like f-droid.

However, it would be expected that most instances update to 0.18 soon. It may take some time tho.

I don’t know about the Website/pc. On jerboa, I can post images, and they get hosted on the instance where my account is.

However I can’t find a way to post gifs, or videos. I could maybe be instance dependent?

I however created an account on a peertube server to share videos here. It’s not well integrated in the posts, as the user has to go to the website where it’s hosted, but for now there isn’t really other solutions.

Did you even try to search for the project? https://github.com/dessalines/jerboa You can find the licence and everything in there.

For the rest no idea, I’ll let the dev answer if anything.