update previous and upcoming sessions, lacks links to recordings on YouTube

Author: truib

docs/training-events/2025/happy-hours-previous-sessions.md

@@ -1,9 +1,18 @@
-# EESSI Happy Hour – Previous Sessions
+# EESSI Happy Hour - Previous Sessions
 
 Find slides, and video recordings of earlier sessions below.
 
 ---
 
+# Topic series: Environment variables to tweak EESSI Initialization
+
+### Monday 06 October 2025 - Controlling EESSI Startup Behavior
+
+**Outline:** Controlling EESSI Startup Behavior
+([Slides (PDF)](EESSI-happyhour-2025-008-Controlling-EESSI-Startup-Behavior.pdf), [Recording (YouTube)]())
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/" 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>
+
 # Topic series: A peek inside EESSI layers
 
 ### Monday 29 September 2025 - Navigating the EESSI GitHub Repositories
@@ -43,14 +52,14 @@ Find slides, and video recordings of earlier sessions below.
 
 <iframe width="560" height="315" src="https://www.youtube.com/embed/_UrXbZI1lE4?si=4PoYoAevRjCen59k" 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 25 August 2025 – Accessing EESSI using container script
+### Monday 25 August 2025 - Accessing EESSI using container script
 
 **Outline:** A walkthrough of accessing EESSI via the [EESSI container script](../../getting_access/eessi_container.md)
 ([Slides (PDF)](EESSI-happyhour-2025-002-Accessing-EESSI-using-container-script.pdf), [Recording (YouTube)](https://www.youtube.com/watch?v=MAgWwj27i9U))
 
 <iframe width="560" height="315" src="https://www.youtube.com/embed/MAgWwj27i9U?si=SOD3hMOVIF3N6hdo" 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 18 August 2025 – Installing and configuring CernVM-FS
+### Monday 18 August 2025 - Installing and configuring CernVM-FS
 
 **Outline:** Access EESSI repository through [installing and configuring CernVM-FS](../../getting_access/native_installation.md)
 ([Slides (PDF)](EESSI-happyhour-2025-001-Installing-and-configuring-CernVM-FS.pdf), [Recording (YouTube)](https://youtu.be/MLeSbMOnbs8))

docs/training-events/2025/happy-hours-sessions.md

@@ -16,7 +16,7 @@ Each series will focus on a specific main topic over several sessions, giving pa
 
 💬 *Who should join?* Everyone interested in EESSI.
 
-Let’s make Mondays productive and collaborative — see you at Happy Hour!
+Let's make Mondays productive and collaborative - see you at Happy Hour!
 
 All sessions will be recorded. Recordings, slides, and materials used will be made publicly available shortly after each session.
 
@@ -27,21 +27,24 @@ All sessions will be recorded. Recordings, slides, and materials used will be ma
 - Online sessions (via Zoom)
 - Mix of presentation & hands-on demos: ~15min of content, ~30min for Q&A
 
-If you haven't joined the EESSI Slack yet, [click here to join](https://join.slack.com/t/eessi-hpc/shared_invite/zt-1wqy0t8g6-PZJTg3Hjjm5Fm3XEOkzECg) 
+If you haven't joined the EESSI Slack yet, [click here to join](https://join.slack.com/t/eessi-hpc/shared_invite/zt-1wqy0t8g6-PZJTg3Hjjm5Fm3XEOkzECg)
 
 ---
 
-### 💡 **Next Session**: Controlling EESSI Startup Behavior
-### Topic Series: Environment variables to tweak EESSI Initialization 
+### 💡 **Next Session**: Using EasyBuild and controlling settings via `EESSI-extend`
+### Topic Series: Building on top of EESSI
 🗓️ Schedule
-#### Monday 06 October 2025, 14:00-15:00 CE(S)T
+#### Monday 13 October 2025, 14:00-15:00 CE(S)T
 
 ---
 
-### Upcoming sessions in the topic series: Environment variables to tweak EESSI Initialization 
+### Upcoming sessions in the topic series: Building on top of EESSI
 ###### Outline
-- 06 October 2025 - Controlling EESSI Startup Behavior
- 
+- 13 October 2025 - Using EasyBuild and controlling settings via `EESSI-extend`
+- 20 October 2025 - How we build software in EESSI
+- 27 October 2025 - Building on top of EESSI using `buildenv` modules
+- 03 November 2025 - Contributing software packages to EESSI
+
 ---
 
 ### Previous EESSI Happy Hour sessions
@@ -52,6 +55,10 @@ See the full Recordings, slides, and materials here: [Previous Sessions & Videos
 
 ---
 
+*Topic series: Environment variables to tweak EESSI Initialization*
+
+- 06 October 2025 [Controlling EESSI Startup Behavior]()
+
 *Topic series: A peek inside EESSI layers*
 
 - 29 September 2025 - [Navigating the EESSI GitHub Repositories](https://youtu.be/e2r7yjVr_pM)
@@ -64,13 +71,11 @@ See the full Recordings, slides, and materials here: [Previous Sessions & Videos
 
 *Topic series: How to Access EESSI*
 
-- 08 September 2025 – [Practical considerations and recommendations for accessing EESSI](https://youtu.be/4HlcXJPOlBE)
-
-- 01 September 2025 – [Explore other ways to access EESSI](https://www.youtube.com/watch?v=_UrXbZI1lE4)
-
-- 25 August 2025 – [Accessing EESSI using container script](https://www.youtube.com/watch?v=MAgWwj27i9U)  
+- 08 September 2025 - [Practical considerations and recommendations for accessing EESSI](https://youtu.be/4HlcXJPOlBE)
 
-- 18 August 2025 – [Installing and configuring CernVM-FS](https://youtu.be/MLeSbMOnbs8)  
+- 01 September 2025 - [Explore other ways to access EESSI](https://www.youtube.com/watch?v=_UrXbZI1lE4)
 
+- 25 August 2025 - [Accessing EESSI using container script](https://www.youtube.com/watch?v=MAgWwj27i9U)
 
+- 18 August 2025 - [Installing and configuring CernVM-FS](https://youtu.be/MLeSbMOnbs8)