Default `dts` option broken

[Gugustinette]

Reproduction link or steps

I created a blank project with npm create tsdown and got the Error: Cannot find package 'typescript' from rolldown-plugin-dts, even without turning dts on.

I had to activate dts.isolatedDeclarations to have the build work again.

I think the default option might have broke somehow ?

What is expected?

Not complaining about typescript 😭

What is actually happening?

Complaining about typescript

Any additional comments?

No response

[sxzz]

Users should install typescript themselves when working on TypeScript projects if not using isolatedDeclarations.

[sxzz]

dts.isolatedDeclarations will be true if isolatedDeclarations is enabled in your tsconfig.

[Gugustinette]

Well I thought isolatedDeclarations was the default 😭

Maybe this should be clearer in the doc ?
It really makes it look like tsdown is enough by default : https://tsdown.dev/guide/getting-started#your-first-bundle

[Gugustinette]

Also I'll have to fix the minimal template in npm create tsdown 💀 My bad on this one

[sxzz]

Sure we indeed need a more clear notice on the docs

[Gugustinette]

I'm not sure what's the best scenario here.

If we recommend using typescript by default, I guess the install command should include it here : https://tsdown.dev/guide/getting-started#installation

If we recommend using dts.isolatedDeclarations by default, It should be configured in the tsdown.config.ts here : https://tsdown.dev/guide/getting-started#your-first-bundle