From c0bbe3b70c45492f6752b6f6a1627bb8c8737a41 Mon Sep 17 00:00:00 2001
From: Mauricio Siu <47042324+Siumauricio@users.noreply.github.com>
Date: Wed, 5 Mar 2025 00:59:57 -0600
Subject: [PATCH] docs: add Railpack build type documentation

---
 .../docs/core/applications/build-type.mdx     | 20 +++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/apps/docs/content/docs/core/applications/build-type.mdx b/apps/docs/content/docs/core/applications/build-type.mdx
index 8a05b21..6f72fa4 100644
--- a/apps/docs/content/docs/core/applications/build-type.mdx
+++ b/apps/docs/content/docs/core/applications/build-type.mdx
@@ -13,8 +13,6 @@ Dokploy offers three distinct build types for deploying applications, each suite
 
 This is the default build type in Dokploy. When you select Nixpacks, Dokploy builds your application as a Nixpack, which is optimized for ease of use and efficiency.
 
-
-
 Nixpacks expose multiples variables to be configured via environment variables. All of these variables are prefixed with `NIXPACKS_`, you can define them in the `Environment Variables` tab.
 
 | Variable                      | Description                                                                                  |
@@ -44,6 +42,24 @@ Astro applications after you build it usually create a `dist` directory, so you
 copy all the files in the `dist` directory to the root of your application, and will use a NGINX Optimized Dockerfile to run your application.
 
 
+### Railpack (NEW)
+
+Railpack is a new build type optimized and is the successor of Nixpacks.
+
+Railpack exposes multiple Build Variables, you can define them in the `Environment Variables` tab.
+
+| Name                  | Description                                                                                                |
+| :-------------------- | :--------------------------------------------------------------------------------------------------------- |
+| `BUILD_CMD`           | Set the command to run for the build step. This overwrites any commands that come from providers           |
+| `START_CMD`           | Set the command to run when the container starts                                                           |
+| `PACKAGES`            | Install additional Mise packages. In the format `pkg@version`. The latest version is used if not provided. |
+| `BUILD_APT_PACKAGES`  | Install additional Apt packages during build                                                               |
+| `DEPLOY_APT_PACKAGES` | Install additional Apt packages in the final image                                                         |
+
+you can read more about Railpack [here](https://railpack.com/config/environment-variables).
+
+Railpack supports Nodejs, Python, Go, PHP, Go, StaticFile, Shell Scripts.
+
 ### Dockerfile
 
 If your project includes a Dockerfile, you can specify its path. Dokploy will use this Dockerfile to build your application directly, giving you full control over the build environment and dependencies