diff --git a/projects/thumbgun/Makefile b/projects/thumbgun/Makefile
index d300338d699f0..c25136f65701b 100644
--- a/projects/thumbgun/Makefile
+++ b/projects/thumbgun/Makefile
@@ -1,11 +1,11 @@
 docker:
-	@docker-compose -f _build/docker-compose.yml up -d
+	@docker compose -f _build/docker-compose.yml up -d
 
 shell:
-	@docker-compose -f _build/docker-compose.yml exec npm sh
+	@docker compose -f _build/docker-compose.yml exec npm sh
 
 dev:
-	@docker-compose -f _build/docker-compose.yml exec -e NODE_ENV=development npm npm --prefix _build run build
+	@docker compose -f _build/docker-compose.yml exec -e NODE_ENV=development npm npm --prefix _build run build
 
 build:
-	@docker-compose -f _build/docker-compose.yml exec -e NODE_ENV=production npm npm --prefix _build run build
+	@docker compose -f _build/docker-compose.yml exec -e NODE_ENV=production npm npm --prefix _build run build
diff --git a/projects/thumbgun/_build/index.ejs b/projects/thumbgun/_build/index.ejs
index 4823df50e9513..1cb1463059bcb 100644
--- a/projects/thumbgun/_build/index.ejs
+++ b/projects/thumbgun/_build/index.ejs
@@ -157,6 +157,21 @@
                 </div>
             </div>
         </div>
+        <div class="col">
+            <div class="card h-100 shadow-sm">
+                <img loading="lazy" class="bd-placeholder-img card-img-top"
+                     src="https://miro.medium.com/max/1400/0*UO3p_XxvW492e6mE" alt="">
+
+                <div class="card-body">
+                    <p class="card-text">
+                        <a href="https://medium.com/@dotcom.software/9-protecting-from-concurrent-access-4e792c56c17e"
+                           target="_blank">
+                            #9 Protecting from Concurrent Access
+                        </a>
+                    </p>
+                </div>
+            </div>
+        </div>
     </div>
 
     <hr class="my-5">
diff --git a/projects/thumbgun/index.html b/projects/thumbgun/index.html
index 18329883f1c3f..f4a73673be84f 100644
--- a/projects/thumbgun/index.html
+++ b/projects/thumbgun/index.html
@@ -1 +1 @@
-<!doctype html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Symfony 6 Thumbgun PHP project</title><link href="style.01621c93313bdb14b44c.css" rel="stylesheet"></head><body><div class="col-md-8 py-5 px-3 mx-auto"><h1>Thumbgun project</h1><div class="col-lg-8 px-0"><p class="lead">A <a href="https://medium.com/@dotcom.software/serving-resized-s3-images-on-the-fly-2ed98e10bf3a?utm_source=dotcom.software" target="_blank">story published on Medium</a> about creating a fully functional, practical, Symfony 6 based application.</p><hr class="my-5 w-25 mx-0"><p>The requirements for the app:</p><ul><li>be written in PHP8.1,</li><li>have few dependencies,</li><li>be open-sourced on GitHub,</li><li>have a GitHub actions pipeline to ensure quality,</li><li>be Dockerized for easy and quick developing,</li><li>cache generated thumbs locally to save bandwidth,</li><li>support multiple types on the output (JPEG + WEBP)</li><li>allow to clear the thumbnail cache en masse,</li><li>correctly handle concurrent access to the same image,</li><li>protect against unauthorized use,</li><li>be flexible enough to change from S3 to any other source if necessary.</li></ul></div><hr class="my-5 w-25 mx-0"><div class="row row-cols-1 row-cols-sm-2 row-cols-md-3 g-3"><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*R6Kze0jCTYd4meZS" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/serving-resized-s3-images-on-the-fly-6b052ee3b0ca?utm_source=dotcom.software" target="_blank">#1 Dockerizing the Symfony 6 app</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*IcCp-RyRUR1ulKEv" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/2-setting-up-xdebug-cec92b7c0cd0?utm_source=dotcom.software" target="_blank">#2 Setting up Xdebug</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*uGSCsxHuZ20DYEQ8" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/3-phpunit-and-psalm-c316e4f7e20a?utm_source=dotcom.software" target="_blank">#3 Setting up PHPUnit and Psalm</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*wVz5GeNddhpb4n5M" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/4-github-actions-continuous-integration-pipelines-1bc80a902374?utm_source=dotcom.software" target="_blank">#4 GitHub actions continuous integration</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*845sgSeGFG676C-t" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/5-serving-thumbnails-1e5d95d8c76b?utm_source=dotcom.software" target="_blank">#5 Serving thumbnails</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*_yF17Nfw0VCQElw2" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/6-preventing-request-forgery-380c63b416b7?utm_source=dotcom.software" target="_blank">#6 Preventing request forgery</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*0UHxXFx0OnDS1aXy" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/7-talking-to-s3-a2b4cb65c7fd?utm_source=dotcom.software" target="_blank">#7 Talking to S3</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*qsk3J9Ci239nH1yS" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/8-caching-requests-ae4778e3d9d1?utm_source=dotcom.software" target="_blank">#8 Caching requests</a></p></div></div></div></div><hr class="my-5"><p class="text-muted">The code is hosted on <a href="https://github.com/dotcom-poland/thumbgun" target="_blank">GitHub</a> and is available for free under MIT license.</p></div><script defer="defer" src="bundle.31d6cfe0d16ae931b73c.js"></script></body></html>
\ No newline at end of file
+<!doctype html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Symfony 6 Thumbgun PHP project</title><link href="style.01621c93313bdb14b44c.css" rel="stylesheet"></head><body><div class="col-md-8 py-5 px-3 mx-auto"><h1>Thumbgun project</h1><div class="col-lg-8 px-0"><p class="lead">A <a href="https://medium.com/@dotcom.software/serving-resized-s3-images-on-the-fly-2ed98e10bf3a?utm_source=dotcom.software" target="_blank">story published on Medium</a> about creating a fully functional, practical, Symfony 6 based application.</p><hr class="my-5 w-25 mx-0"><p>The requirements for the app:</p><ul><li>be written in PHP8.1,</li><li>have few dependencies,</li><li>be open-sourced on GitHub,</li><li>have a GitHub actions pipeline to ensure quality,</li><li>be Dockerized for easy and quick developing,</li><li>cache generated thumbs locally to save bandwidth,</li><li>support multiple types on the output (JPEG + WEBP)</li><li>allow to clear the thumbnail cache en masse,</li><li>correctly handle concurrent access to the same image,</li><li>protect against unauthorized use,</li><li>be flexible enough to change from S3 to any other source if necessary.</li></ul></div><hr class="my-5 w-25 mx-0"><div class="row row-cols-1 row-cols-sm-2 row-cols-md-3 g-3"><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*R6Kze0jCTYd4meZS" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/serving-resized-s3-images-on-the-fly-6b052ee3b0ca?utm_source=dotcom.software" target="_blank">#1 Dockerizing the Symfony 6 app</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*IcCp-RyRUR1ulKEv" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/2-setting-up-xdebug-cec92b7c0cd0?utm_source=dotcom.software" target="_blank">#2 Setting up Xdebug</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*uGSCsxHuZ20DYEQ8" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/3-phpunit-and-psalm-c316e4f7e20a?utm_source=dotcom.software" target="_blank">#3 Setting up PHPUnit and Psalm</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*wVz5GeNddhpb4n5M" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/4-github-actions-continuous-integration-pipelines-1bc80a902374?utm_source=dotcom.software" target="_blank">#4 GitHub actions continuous integration</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*845sgSeGFG676C-t" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/5-serving-thumbnails-1e5d95d8c76b?utm_source=dotcom.software" target="_blank">#5 Serving thumbnails</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*_yF17Nfw0VCQElw2" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/6-preventing-request-forgery-380c63b416b7?utm_source=dotcom.software" target="_blank">#6 Preventing request forgery</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*0UHxXFx0OnDS1aXy" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/7-talking-to-s3-a2b4cb65c7fd?utm_source=dotcom.software" target="_blank">#7 Talking to S3</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/700/0*qsk3J9Ci239nH1yS" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/8-caching-requests-ae4778e3d9d1?utm_source=dotcom.software" target="_blank">#8 Caching requests</a></p></div></div></div><div class="col"><div class="card h-100 shadow-sm"><img loading="lazy" class="bd-placeholder-img card-img-top" src="https://miro.medium.com/max/1400/0*UO3p_XxvW492e6mE" alt=""><div class="card-body"><p class="card-text"><a href="https://medium.com/@dotcom.software/9-protecting-from-concurrent-access-4e792c56c17e" target="_blank">#9 Protecting from Concurrent Access</a></p></div></div></div></div><hr class="my-5"><p class="text-muted">The code is hosted on <a href="https://github.com/dotcom-poland/thumbgun" target="_blank">GitHub</a> and is available for free under MIT license.</p></div><script defer="defer" src="bundle.31d6cfe0d16ae931b73c.js"></script></body></html>
\ No newline at end of file
