Merge pull request #670 from EESSI/EESSI-happy-hour-023

add happy hour 023: slides & recording

Author: Neves-P

docs/training-events/2026/EESSI-happyhour-2026-003-EESSI-in-Motion.pdf

@@ -6,6 +6,13 @@ Find slides, and video recordings of earlier sessions below.
 
 # Topic series: EESSI Fundamentals Refresher
 
+### Monday 02 February 2026
+
+**Outline:** Revisit `eessi_container.sh`
+([Slides (PDF)](EESSI-happyhour-2026-004-Revisit-eessi_container.sh.pdf), [Recording (YouTube)](https://youtu.be/On27r07aQug))
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/On27r07aQug?si=LybNITgOkH0rwP-9" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+
 ### Monday 26 January 2026
 
 **Outline:** EESSI in Motion

docs/training-events/2026/EESSI-happyhour-2026-004-Revisit-eessi_container.sh.pdf

@@ -31,18 +31,16 @@ If you haven't joined the EESSI Slack yet, [click here to join]({{ config.extra.
 
 ---
 
-### 💡 **Next session**: Revisit `eessi_container.sh` 
+### 💡 **Next session**: EESSI Without Native CVMFS? Meet `cvmfsexec`! 
 ### Topic Series: EESSI Fundamentals Refresher
 🗓️ Schedule
-#### Monday 2 February 2026, 14:00-15:00 CE(S)T
+#### Monday 9 February 2026, 14:00-15:00 CE(S)T
 
 ---
 
 ### Upcoming topic series: EESSI Fundamentals Refresher
 ###### Outline
 
-- 02 February 2026 - Revisit `eessi_container.sh`
-
 - 09 February 2026 - EESSI Without Native CVMFS? Meet `cvmfsexec`!
 
 - 16 February 2026 - EESSI Offline: Portable CVMFS Repositories
@@ -57,6 +55,8 @@ See the full Recordings, slides, and materials here: [Previous Sessions & Videos
 
 *Topic series: EESSI Fundamentals Refresher*
 
+- 02 February 2026 - [Revisit `eessi_container.sh`](https://youtu.be/On27r07aQug)
+
 - 26 January 2026 - [EESSI in Motion](https://youtu.be/6Xx7s1ZlGqs)
 
 - 19 January 2026 - [Meet EESSI: Build Once. Run Everywhere.](https://youtu.be/gFSMSOziw4c)