TA-Linux is a free Linux distribution, that targets Linux power users. TA-Linux's main goal is to have a small base installation that the end-user can expand to include the software he needs.
The secondary goal is to support as many different architectures as possible.
At this time i386, Alpha, PPC and MIPS are fully supported with Sparc and PA-RISC around the corner.
Extra software not included in the base is handled using a system like the *BSD ports/gentoo portagee/etc called Collection, that handles installation, upgrading and dependencies.
The primary way of installing new software is to download the source, compile and install it (totally automatic). The user can also choose to install already built binary packages, also automatically using the Collection system.