[ZiiS]

Yes it is open to individual comercial use (companies much larger then sole proprieterships may only have one person doing inferstructure). They also have a version for nonprofits https://www.pulumi.com/pricing/open-source-free-tier/

[pcthrowaway]

Do you have a source for that (or are you affiliated)?

[cnunciato]

Pulumi engineer here. There’s no restriction —- you’re free to use the Individual Edition commercially if you like.