Wii Party vs. Solus: Completely Unrelated

These are two entirely different things:

• Wii Party (2010, Nintendo Wii) — Party game with 80+ minigames, board game modes, Mii integration. Local multiplayer (1–4 players).
• Solus (Linux distribution, est. 2015) — Independent rolling-release OS, Budgie desktop, eopkg package manager. For desktops/laptops.

No Overlap

One is a video game. The other is an operating system. They share zero code, purpose, or audience.

If You Meant Something Else

• Wii Party U (Wii U, 2013) — HD sequel with GamePad features.
• Solus Project (2016, PC/PS4) — Survival exploration game (unrelated to the OS).

Clarify which you're asking about for relevant details.