You might also be interested in the O'Saasy license (https://osaasy.dev/) which is in the similar vein, but simpler.
HashiCorp switched to BUSL license for their products/tools when they already had substantial market share, and they still faced MPL-licensed forks (Terraform -> OpenTofu, Vault -> OpenBao). It will be interesting to see in a few years if those tools notably cut into their share.
I'm not sure a new tool with a BUSL license will get adoption as easily.
Looks nice. Two main differences:
- BUSL is OSI-approved and listed in SPDX, so corporate lawyers won't be scared away by it: https://spdx.org/licenses/BUSL-1.1.html
- With BUSL the restriction is revenue-based. You can still create competing products, but would have to pay a licensing fee.