People usually use the open source definition from the Open Source Initiative. That definition does have extra requirements:

https://opensource.org/osd

That makes sense. Brazil’s number is close to its peers in Latin America and the Caribbean.

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We’ve been doing this for more than 2 years here. We live in a tropical country.

We prefer to use buckets. Similar to this: https://www.ruralsprout.com/wp-content/uploads/2020/04/vermicomposter.jpg.webp

We only compost raw vegetables and fruits (non-acidic) because that helps to maintain a healthy environment for the worms with less pests. It’s also easier to maintain.

The only pests we’ve had area: ants, flies and beetles. I believe ants and beetles’ eggs came with some grass we used. Last weekend, I noticed a tiny frog too. I’m hoping it will help me control the insects. 😁

We have 6x15L buckets plus additional buckets for vermiwash. That’s enough for a family of 2.

Benefits: less trash, free nutrients.

Negatives: be prepared to spend half an hour per week in order to mix the waste, kill the ants, clean the buckets, etc.

It doesn’t seem to be your case, but I wouldn’t recommend vermicomposting to tiny spaces, e.g. apartments, because of the flies.

“Today”, right. I wish you a good weekend stranger.