make what you need
Make tools for yourself first, not for all of your friends or ”everyone“. If you design tools for some hypothetical user, they may not actually exist; if you make tools for yourself, you actually do exist.
By making something that satisfies your needs, and is backwards compatible for others, e.g. by practicing POSSE, you benefit immediately, without having to convince anyone else. If and when others join, you all benefit.
The following metaphors may also be help explain this principle, depending on which resonate the most with folks:
Cook what you want
Cook what you want is the counterpart (preceding) to eat what you cook, and a metaphor that may appeal to people who like to cook their own meals.
Grow what you need
Grow what you need is a metaphor perhaps more appealing to gardeners, who have experience with growing plants for their own needs & desires.
- In response to an article about lead contamination of many off-the-shelf spices & herbs, several folks encouraged people to "grow your own"
Scratch Your Own Itch
Scratch your own itch was the previous expression of this principle, but as a metaphor.