Unable to run dockerfile [FATAL tini (7)] exec /app/start.sh failed: No such file or directory]

[ndl4145]

I am by no means a docker expert, so likely this is a user error on my end. I am able to successfully build the image using the quick setup in the README.md, having used both:

DOCKER_BUILDKIT=1 docker build . -t rosetta-helium:latest
and

DOCKER_BUILDKIT=1 docker build . -f Dockerfile_quick -t rosetta-helium:latest

I am attempting to run with the recommended command as well:

docker run -d --rm --init --ulimit "nofile=1000000:1000000" -v "$(pwd)/helium-data:/data" -p 8080:8080 -p 44158:44158 rosetta-helium:latest

But when attempting to run the image, I am met with error: [FATAL tini (7)] exec /app/start.sh failed: No such file or directory]. I've attempted to change the start.sh path entry point to /start.sh, ./start.sh to no avail. How would I remedy this issue? This fails in both wsl2 and powershell.

Here are my specs:

Docker Version:

Client: Docker Engine - Community
 Cloud integration: v1.0.23
 Version:           20.10.14
 API version:       1.41
 Go version:        go1.16.15
 Git commit:        a224086
 Built:             Thu Mar 24 01:48:21 2022
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Desktop
 Engine:
  Version:          20.10.14
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.16.15
  Git commit:       87a90dc
  Built:            Thu Mar 24 01:46:14 2022
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.5.11
  GitCommit:        3df54a852345ae127d1fa3092b95168e4a88e2f8
 runc:
  Version:          1.0.3
  GitCommit:        v1.0.3-0-gf46b6ba
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

Ubuntu:

Distributor ID: Ubuntu
Description:    Ubuntu 20.04.4 LTS
Release:        20.04
Codename:       focal