Add a devcontainer with brew so I can work on ipad

.devcontainer/07_oh_my_zsh/Dockerfile

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+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.238.0/containers/ubuntu/.devcontainer/base.Dockerfile
+
+# [Choice] Ubuntu version (use ubuntu-22.04 or ubuntu-18.04 on local arm64/Apple Silicon): ubuntu-22.04, ubuntu-20.04, ubuntu-18.04
+ARG VARIANT="jammy"
+FROM mcr.microsoft.com/vscode/devcontainers/base:0-${VARIANT}
+
+# [Optional] Uncomment this section to install additional OS packages.
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+     && apt-get -y install --no-install-recommends locales
+
+RUN locale-gen en_US.UTF-8  
+ENV LANG en_US.UTF-8  
+ENV LANGUAGE en_US:en  
+ENV LC_ALL en_US.UTF-8  
+
+USER root
+
+ENTRYPOINT ["/bin/zsh"]
+CMD ["/bin/zsh"]

.devcontainer/07_oh_my_zsh/README.md

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+# README
+
+Demonstrate a simple `zsh` container using features.  
+
+Demonstrates:
+
+* Using features
+* It seems to be much quicker to build.  
+
+TODO:
+
+* Configure zsh correctly (niceprompt).  
+
+## Contents
+
+- [README](#readme)
+  - [Contents](#contents)
+  - [Start (vscode)](#start-vscode)
+  - [Run tests](#run-tests)
+  - [Stop](#stop)
+  - [Resources](#resources)
+
+## Start (vscode)
+
+Use the Remote Containers extension and select "Reopen in Container" or...  
+
+```sh
+# start devcontainer
+./devcontainerctl.sh -n=07_oh_my_zsh
+
+# start devcontainer (rebuild)
+./devcontainerctl.sh -n=07_oh_my_zsh --no-cache
+```
+
+Use `⌘ + ^ + p` and "Dev Containers: Attach to a running container"
+
+Add `/workspaces/devcontainer_examples` as a workspace to the new vscode editor.  
+
+```sh
+cd /workspaces/devcontainer_examples
+```
+
+## Run tests
+
+```sh
+cd ./07_oh_my_zsh
+echo $DEVCONTAINER_TYPE
+```
+
+## Stop
+
+```sh
+# stop devcontainer
+./devcontainerctl.sh -n=07_oh_my_zsh --down
+```
+
+## Resources
+
+* devcontainers/cli repo [here](https://github.com/devcontainers/cli)  
+* devcontainers-contrib/features repo [here](https://github.com/devcontainers-contrib/features)
+* codespaces-multi-repository-monorepo-scenarios blog [here](https://github.blog/2022-04-20-codespaces-multi-repository-monorepo-scenarios/)  
+* integrated-terminal config [here](https://code.visualstudio.com/docs/editor/integrated-terminal)  

.devcontainer/07_oh_my_zsh/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.238.0/containers/ubuntu
+{
+  "name": "07_oh_my_zsh",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "context": ".",
+    // Update 'VARIANT' to pick an Ubuntu version: jammy / ubuntu-22.04, focal / ubuntu-20.04, bionic /ubuntu-18.04
+    // Use ubuntu-22.04 or ubuntu-18.04 on local arm64/Apple Silicon.
+    "args": { "VARIANT": "ubuntu-22.04" }
+  },
+  // Use 'postCreateCommand' to run commands after the container is created.
+  "postCreateCommand": "bash /workspaces/devcontainer_examples/.devcontainer/07_oh_my_zsh/postCreateCommand.sh",
+
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // "forwardPorts": [],
+
+  "containerUser": "root",
+  // Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+  "remoteUser": "root",
+  "features": {
+    "ghcr.io/devcontainers/features/common-utils:2": {
+      "configureZshAsDefaultShell": true,
+      "installZsh": true,
+      "installOhMyZsh": true,
+      "username": "root"
+    },
+    "ghcr.io/devcontainers/features/git:1": {
+      "version": "latest"
+    },
+    "ghcr.io/meaningful-ooo/devcontainer-features/homebrew:2": {
+      "version": "latest",
+      "shallowClone": true
+    }
+  },
+  // Configure tool-specific properties.
+  "customizations": {
+    // Configure properties specific to VS Code.
+    "vscode": {
+      // Add the IDs of extensions you want installed when the container is created.
+      "extensions": [
+        "ms-azuretools.vscode-docker",
+        "oderwat.indent-rainbow",
+        "timonwong.shellcheck",
+        "DavidAnson.vscode-markdownlint"
+      ]
+    },
+    "settings": {
+      "terminal.integrated.profiles.linux": {
+        "zsh": {
+          "path": "/usr/bin/zsh"
+        }
+      },
+      "terminal.integrated.defaultProfile.linux": "zsh"
+    }
+  },
+  "containerEnv": {
+    "MY_TEST_SECRET": "${localEnv:TEST_SECRET}",
+    "MY_VARIABLE": "${localEnv:MY_VARIABLE}",
+    "DEVCONTAINER_TYPE": "07_oh_my_zsh"
+  },
+  // NOTE: THIS IS NOT WORKING
+  // --mount-workspace-git-root false
+  // ,"workspaceMount": "source=${localWorkspaceFolder}/01_bash_container,target=/workspace,type=bind,consistency=cached",
+  // "workspaceFolder": "/workspace"
+}

.devcontainer/07_oh_my_zsh/postCreateCommand.sh

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+#!/bin/bash/env bash
+echo "Executing postCreateCommand.sh"
+echo "uname: $(uname -a)"
+echo "whoami: $(whoami)"
+
+sed -i.bak "s/ZSH_THEME=\"codespaces\"/ZSH_THEME=\"robbyrussell\"/g" /root/.zshrc
+sed -i.bak "s/ZSH_THEME=\"codespaces\"/ZSH_THEME=\"robbyrussell\"/g" ~/.zshrc
+