Connect a LocalTalk network to an EtherTalk network. If you're using a network with both Ethernet and older LocalTalk cabling, run LocalTalk bridge on a Mac with both to connect the two.
With LocalTalk bridge, you can have, for example, an Apple IIgs connected to an AppleShare server running on a blue and white Power Mac G3!
The Mac 512K Blog chronicles the Macintosh 512K and my projects with it. We will test software, fix hardware, program it, hack it, and generally take the 512K Macintosh to its limits.