update template

.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

@@ -1,30 +1,29 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/alpine
 {
-	"name": "Ubuntu",
-	"image": "mcr.microsoft.com/devcontainers/base:jammy",
-	// Features to add to the dev container. More info: https://containers.dev/implementors/features.
+	"name": "Alpine",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/base:alpine-3.17",
 	"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": [],
+
 	// Use 'postCreateCommand' to run commands after the container is created.
-	"postCreateCommand": ".devcontainer/postCreateCommand.sh",
+	// "postCreateCommand": "nix-env -i nixpkgs-fmt",
+
 	// Configure tool-specific properties.
 	"customizations": {
 		// Configure properties specific to VS Code.
 		"vscode": {
 			// Set *default* container specific settings.json values on container create.
 			"settings": {
-				"terminal.integrated.profiles.linux": {
-					"dev": {
-						"path": "/usr/bin/devShell",
-						"icon": "terminal-bash"
+				"settings": {
+					"terminal.integrated.defaultProfile.linux": "dev-shell"
 				}
 			},
-				"terminal.integrated.defaultProfile.linux": "dev"
-			},
 			"extensions": [
 				"jnoortheen.nix-ide",
 				"ms-azuretools.vscode-docker",
@@ -35,6 +34,7 @@
 			]
 		}
 	}
+
 	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
 	// "remoteUser": "root"
 }

.devcontainer/postCreateCommand.sh

@@ -1,3 +0,0 @@
-#!/bin/env sh
-
-nix-env -i nixpkgs-fmt

.vscode/settings.json

@@ -0,0 +1,9 @@
+{
+    "terminal.integrated.profiles.linux": {
+        "dev-shell": {
+            "path": "bash",
+            "args": [ "-c", "nix --experimental-features \"nix-command flakes\" develop"],
+            "overrideName": true
+        }
+    }
+}