If you want to play with friends on a private server, you may need to set up a virtual LAN (Local Area Network) using a tool like .
When searching for "new downloads" of rare Alpha versions, exercise extreme caution.
Today, you can still visit the Omniarchive servers to play with others using these exact legacy versions, preserving not just the code, but the community spirit of early Minecraft.
It won't be fast. It won't be pretty. But you will be playing Waterfall-era Minecraft.