add a devcontainer config

.devcontainer/devcontainer.json

@@ -0,0 +1,42 @@
+{
+    "name": "Python 3",
+    "image": "mcr.microsoft.com/devcontainers/python:1-3.12",
+    "features": {
+        "ghcr.io/devcontainers/features/common-utils:2": {
+            "installZsh": "true",
+            "username": "vscode",
+            "userUid": "1000",
+            "userGid": "984",
+            "upgradePackages": "true"
+        },
+        "ghcr.io/devcontainers/features/python:1": {
+            "toolsToInstall": "flake8,autopep8,black,yapf,mypy,pydocstyle,pycodestyle,bandit,pipenv,virtualenv,pytest,pylint,poetry"
+        },
+        "ghcr.io/nikobockerman/devcontainer-features/poetry-persistent-cache:1": {}
+    },
+    "customizations": {
+        "vscode": {
+            "settings": {
+                "python.defaultInterpreterPath": ".venv/bin/python",
+                "python.terminal.activateEnvironment": true,
+                "python.terminal.activateEnvInCurrentTerminal": true,
+                "python.envFile": "${workspaceFolder}/.env",
+                "editor.formatOnSave": true,
+                "terminal.integrated.defaultProfile.linux": "zsh"
+            }
+        }
+    },
+    "forwardPorts": [8000,5000],
+    "postCreateCommand": "poetry config virtualenvs.create false && poetry install",
+    "remoteUser": "vscode",
+    "workspaceMount": "", // fixed below in the --volume argument  - enables rootless podman
+    "runArgs": [
+        "--userns=keep-id",
+        "--memory=0",
+        "--cpus=0",
+        "--volume=${localWorkspaceFolder}:/workspaces/${localWorkspaceFolderBasename}:Z" // explicitly mount the workspace folder
+    ],
+    "containerEnv": {
+        "HOME": "/home/vscode"
+    }
+}

poetry.toml

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+[virtualenvs]
+in-project = true