remove nixpacks and add railpack

nixpacks.toml

@@ -1,9 +0,0 @@
-# nixpacks.toml
-
-# 1. Define the build phase to compile your Astro static files
-[phases.build]
-cmds = ["npm run build"]
-
-# 2. Tell Nixpacks how to run the web server and keep the container alive
-[start]
-cmd = "npx serve dist --port 3000"

railpack.json

@@ -0,0 +1,23 @@
+{
+    "$schema": "https://schema.railpack.com",
+    "steps": {
+        "install": {
+            "commands": [
+                "npm install"
+            ]
+        },
+        "build": {
+            "inputs": [
+                {
+                    "step": "install"
+                }
+            ],
+            "commands": [
+                "npm run build"
+            ]
+        }
+    },
+    "deploy": {
+        "startCommand": "npx serve dist --port 3000"
+    }
+}