DATABASE_URL env variable not found

Not sure whether this is a supabase or prisma or .env question, but this is where I got stuck:

schema.prisma has been created and i'm doing a npx prisma db push terminal command but got the error

----

Prisma schema loaded from prisma\schema.prisma
Error: Prisma schema validation - (get-config wasm)
Error code: P1012
error: Environment variable not found: DATABASE_URL.
--> prisma\schema.prisma:10
|
9 | provider = "postgresql"
10 | url = env("DATABASE_URL")
|

Validation Error Count: 1
[Context: getConfig]

Prisma CLI Version : 6.17.1

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I've verified that the the .env.local file exists and that gitignore specifically did !.env.local. The DATABASE_URL in .env.local is also correct.

I'm on Windows 11 Home, PowerShell Terminal

Thanks in advance for any help and guidance.
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