Access
Omnis is located within it's own galaxy and can be reached using a wormhole located on top of Rutilicus' star (the system the player starts in), or alternatively a custom start is available to start the game at Omnis. Starting the game using the custom start will give the player a credit value at the limit of integer breaking, so there's no need to worry about going broke!
There is only one wormhole that leads to Omnis, as any more can easily lead to issues where the AI can circumvent the games map but travelling through these wormholes. The fixes to avoid this issue add unnecessary complexity to the game and were decided against a long time ago.