Communities of practice are formed by people who engage in a process of collective learning towards living a nonviolent life.
Note that this allows for, but does not assume, intentionality: learning can be the reason the community comes together or an incidental outcome of member's interactions. Not everything called a community is a community of practice. Not everything called a community is a community of practice.
Here is a short 5 minute video that explains what is involved in a Community of Practice and how it can benefit you and your nonviolent journey
How to run a Community of Practice
It is the combination of three elements that constitutes a community of practice. And it is by developing these three elements in parallel that one cultivates such a community...