"Open Design seeks to keep parts and materials reusable.
Open Design aims to chose parts that work in many different designs.
Reversability is key: Screws over glues. Clamps over screws. …
Pre-Use! Repurpose parts without undermining their ability to still fulfill their original purpose later on. Make no or as little harm as possible to parts and materials. Don‘t adapt your parts and materials to your design, adapt your design to the shape of parts and materials. This is called Pre-Use.
If you need to modify parts and materials go for modifications that add possibilities to them and not just taking them away. If you need to drill holes for example go for a unified grid that is common in your area to add a reusable part to an already existing family of parts." (https://mifactori.de/what-is-open-design/)