kunkun/packages/typescript-config/README.md

To extend the base.json config, use relative path

"extends": "@kksh/typescript-config/base.json" // no
"extends": "../typescript-config/base.json" // yes

Because the path alias is resolved relative to the file that extends the config. If you install "@kksh/typescript-config": "workspace:*" in the package.json, @kksh/typescript-config actually points to node_modules/packages/typescript-config, and the path alias cannot be correctly resolved. (will need to add another ../).

"paths": {
    "@kksh/ui/*": ["../../packages/ui/*"]
}

needs to become

"paths": {
    "@kksh/ui/*": ["../../../packages/ui/*"]
}

to "escape" from node_modules.

So I'd rather use relative path to extend the config.