diff --git a/roadmaps/devops/content/buildkite@1du8Q2pRZM82ri6jBy5T7.md b/roadmaps/devops/content/buildkite@1du8Q2pRZM82ri6jBy5T7.md
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@@ -0,0 +1,8 @@
+# Buildkite
+
+Buildkite is a CI/CD platform that runs build agents on your own infrastructure while providing a hosted web interface for pipeline management. It combines the security and flexibility of self-hosted agents with the convenience of a SaaS dashboard, making it popular for teams with strict data residency requirements or large-scale build workloads.
+
+Visit the following resources to learn more:
+
+- [@official@Buildkite Docs](https://buildkite.com/docs)
+- [@official@Getting Started with Buildkite](https://buildkite.com/docs/tutorials/getting-started)
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diff --git a/roadmaps/devops/content/railway@e0CIteRMxc0DydKEJnMhp.md b/roadmaps/devops/content/railway@e0CIteRMxc0DydKEJnMhp.md
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+# Railway
+
+Railway is a cloud platform that lets developers deploy applications without managing servers or infrastructure directly. It connects to a GitHub repository and automatically builds and deploys code on every push, handling containers, networking, and scaling behind the scenes. Developers use it for databases, backend services, and full-stack apps, often as a simpler alternative to configuring cloud providers like AWS by hand. It also provides built-in environment variable management, deployment logs, and preview environments for pull requests.
+
+Visit the following resources to learn more:
+
+- [@article@Railway Docs](https://docs.railway.com/)
+- [@article@CI/CD for Modern Deployment: From Manual Deploys to PR Environments](https://blog.railway.com/p/cicd-for-modern-deployment-from-manual-deploys-to-pr-environments)
+- [@video@Automatic CI/CD pipeline by Railway APP. (On git merge)](https://www.youtube.com/watch?v=ISnObP7-k04)
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diff --git a/roadmaps/devops/content/secret-management@hcrPpjFxPi_iLiMdLKJrO.md b/roadmaps/devops/content/secret-management@hcrPpjFxPi_iLiMdLKJrO.md
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--- a/roadmaps/devops/content/secret-management@hcrPpjFxPi_iLiMdLKJrO.md
+++ b/roadmaps/devops/content/secret-management@hcrPpjFxPi_iLiMdLKJrO.md
@@ -4,7 +4,7 @@ Secret management refers to the practices and tools used to securely store, acce
 
 Visit the following resources to learn more:
 
+- [@course@CI/CD Secret Exposure: Hands-on Exercise](https://ransomleak.com/exercises/cicd-secret-exposure/)
 - [@article@How to Manage Secrets in Web Applications?](https://cs.fyi/guide/secret-management-best-practices)
 - [@article@Why DevSecOps Teams Need Secrets Management](https://www.keepersecurity.com/blog/2023/01/26/why-devsecops-teams-need-secrets-management/)
-- [@course@CI/CD Secret Exposure: Hands-on Exercise](https://ransomleak.com/exercises/cicd-secret-exposure/)
 - [@video@DevOps Tricks for Managing Secrets in Production](https://www.youtube.com/watch?v=u_L-f7Th_7o)
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