diff --git a/env.ps1 b/env.ps1
new file mode 100644
index 0000000..b8a7802
--- /dev/null
+++ b/env.ps1
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: LGPL-2.1-only
+# Copyright 2022 Jookia <contact@jookia.org>
+
+Function Activate { .\venv\Scripts\Activate.ps1 }
+
+Function Die {
+    Param ( $Message )
+    Remove-Item -Recurse venv
+    Write-Output $Message
+    Exit 1
+}
+
+Function Setup {
+    Write-Output "No venv found, creating..."
+    python -m venv venv || Die "Unable to create venv"
+    Write-Output "Activating venv..."
+    Activate
+    Write-Output "Updating pip..."
+    pip -q install -U pip || Die "Unable to update pip"
+    Write-Output "Installing requirements..."
+    pip -q install -r requirements.txt || Die "Unable to install requirements"
+    New-Item venv\.stamp | Out-Null
+    Write-Output "All done!"
+}
+
+If (Test-Path -Path venv\.stamp) { Activate } Else { Setup }
+
+Function Global:tidy { black src tests }
+Function Global:lint { flake8 src tests }
+Function Global:test { pytest -q -n auto --hypothesis-profile=dev }
+Function Global:test_ci { pytest -q -n auto --hypothesis-profile=ci }
+Function Global:test_long { pytest -q -n auto --hypothesis-profile=long }
+Function Global:check { tidy && lint && test }