I want to run a task in the root directory that uses a relative file reference in one of my packages. This is producing a not found error as the file is relative to the package, not to the root.

I have a db package that is using kysely and kysely-codegen to generate a schema file. I am using the following shell script placed in packages/db/bin/generate_schema.sh to do this

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SCRIPT_DIR=$(cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd)
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ROOT=$(realpath "$SCRIPT_DIR/..")
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cat ${ROOT}/sql/create_db.sql | sqlite3 local.db;
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DATABASE_URL=local.db bunx kysely-codegen --out-file ${ROOT}/src/schema/db.d.ts;
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rm local.db;

In my package.json I have the following scripts

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 "scripts": {
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    "dev": "tsc --watch",
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    "db:generate": "sh ./bin/generate_protos.sh"
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  },

And in my turbo.json I have added

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"tasks": {
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    ...,
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    "db:generate": {}
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  }

bun run db:generate works when I am in packages/db, but running turbo run db:generate produces the error sh: ./bin/generate_protos.sh: No such file or directory. This fails whether I am in the root directory or in packages/db

Is there a way I can support this behaviour? I am fairly new to turborepo so maybe there is something I am missing?