Verify a runtime -- permission problems

I am having an issue with the permissions:

duniter-v2s ((runtime-401))> podman run \
                                     -i \
                                     --rm \
                                     -e PACKAGE=gdev-runtime \
                                     -e RUNTIME_DIR=runtime/gdev \
                                     -v $PWD:/build \
                                     paritytech/srtool:1.66.1 build --app --json -cM
🧰 Substrate Runtime Toolbox - srtool v0.9.25 🧰
              - by Chevdor -
info: using existing install for '1.66.1-x86_64-unknown-linux-gnu'
info: override toolchain for '/build' set to '1.66.1-x86_64-unknown-linux-gnu'

  1.66.1-x86_64-unknown-linux-gnu unchanged - rustc 1.66.1 (90743e729 2023-01-10)

🏗  Building gdev-runtime as release using rustc 1.66.1 (90743e729 2023-01-10)
⏳ That can take a little while, be patient... subsequent builds will be faster.
   Since you have to wait a little, you may want to learn more about Substrate runtimes:
   https://docs.substrate.io/v3/getting-started/architecture/
Error: Os { code: 13, kind: PermissionDenied, message: "Permission denied" }
!!! The RUNTIME_DIR 'runtime/gdev' does not look like a Cargo project. Is it pointing to the repo of your runtime?

I’ll continue digging tomorrow.