Behold: Deep Seabase Tau Prime. 900 meters below surface level. Powered entirely by hydrothermal vents. Contains onboard fish breeding, crop growing, and water purification facilities for indefinite survival independent of the surface. Master bedroom has views of brine pool, local fauna, Ghost Leviathan nest. Docking and repair facility for high-pressure expedition suit. Pressure equalized with surroundings via open moonpool for saturation diving.
please do not ask how long I spent building this