diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
deleted file mode 100644
index d0525d5..0000000
--- a/.devcontainer/devcontainer.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-	"name": "Python 3",
-	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-	"image": "mcr.microsoft.com/devcontainers/python:1-3.9-bookworm",
-	"onCreateCommand": ".devcontainer/startup.sh",
-	"customizations": {
-		"vscode": {
-			"settings": {
-				"python.testing.pytestEnabled": true,
-				"python.testing.unittestEnabled": false,
-				"python.testing.pytestArgs": [
-					"."
-				],
-				"python.pythonPath": ".venv/bin/python",
-				"python.defaultInterpreterPath": ".venv/bin/python",
-				"python.terminal.activateEnvInCurrentTerminal": true
-			},
-			"extensions": [
-				"ms-toolsai.jupyter"
-			]
-		}
-	}
-}
diff --git a/.devcontainer/startup.sh b/.devcontainer/startup.sh
deleted file mode 100755
index dc3cdf2..0000000
--- a/.devcontainer/startup.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-pipx install poetry
-poetry config virtualenvs.in-project true
-poetry install
-poetry run pre-commit install
diff --git a/README.md b/README.md
index af2035f..ad8575c 100644
--- a/README.md
+++ b/README.md
@@ -8,9 +8,6 @@ month](https://img.shields.io/pypi/dm/cvxjson.svg)](https://pypi.python.org/pypi
 [![Coverage 
 Status](https://coveralls.io/repos/github/cvxgrp/cvxjson/badge.png?branch=main)](https://coveralls.io/github/cvxgrp/cvxjson?branch=main)
 
-[![Open in GitHub 
-Codespaces](https://github.com/codespaces/badge.svg)](https://codespaces.new/cvxgrp/cvxjson)
-
 ## Poetry
 
 We assume you share already the love for [Poetry](https://python-poetry.org).