add src

.devcontainer/dev_shell/devcontainer-feature.json

@@ -1,6 +0,0 @@
-{
-    "name": "DevShell",
-    "id": "dev_shell",
-    "version": "1.0.0",
-    "description": "A nix based dev shell"
-}

.devcontainer/dev_shell/install.sh

@@ -1,4 +0,0 @@
-#!/bin/env sh
-
-echo 'nix --experimental-features "nix-command flakes" develop' >/usr/bin/devShell
-chmod +x /usr/bin/devShell

.devcontainer/devcontainer.json

@@ -4,8 +4,7 @@
 	// Features to add to the dev container. More info: https://containers.dev/implementors/features.
 	"features": {
 		"ghcr.io/devcontainers/features/docker-from-docker:1": {},
-		"ghcr.io/devcontainers/features/nix:1": {},
-		"./dev_shell": {}
+		"ghcr.io/devcontainers/features/nix:1": {}
 	},
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [],