Lowtech Graph lists low-tech options for every need of a home. Here you can compare them, find tutorials to build them, and link them together into a circular system. Why low-tech?

Internal (private/shared) separation

Keeping one room from being heard in another. In a small house this is what decides whether someone can sleep while someone else cooks or works. The options differ in whether they separate the rooms by distance and layout or soften the sound inside them.

Solutions