add happy hour 020: slides & recording

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

@@ -4,6 +4,17 @@ Find slides, and video recordings of earlier sessions below.
 
 ---
 
+# Topic series: EESSI-Christmas: Wishlist for 2026
+
+### Monday 22 December 2025
+
+
+**Outline:** EESSI-Christmas: Wishlist for 2026
+
+*This session was deliberately not recorded, to facilitate information discussion & feedback)*
+
+---
+
 # Topic series: Expanding the reach of EESSI: K8s and Android
 
 ### Monday 15 December 2025

docs/training-events/2026/happy-hours-previous-sessions.md

@@ -0,0 +1,16 @@
+# EESSI Happy Hour - Previous Sessions (2026)
+
+Find slides, and video recordings of earlier sessions below.
+
+---
+
+# Topic series: EESSI Roadmap 2026
+
+### Monday 12 January 2026
+
+**Outline:** EESSI Roadmap 2026
+([Slides (PDF)](EESSI-happyhour-2026-001-EESSI-Roadmap-2026.pdf), [Recording (YouTube)](https://youtu.be/M0g7VU5hPvg))
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/M0g7VU5hPvg?si=n38AfknOTNzc5LB3" 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>
+
+---

docs/training-events/2026/happy-hours-sessions.md → docs/training-events/happy-hours-sessions.md

@@ -1,4 +1,4 @@
-# EESSI Happy Hour sessions (2026)
+# EESSI Happy Hour sessions
 
 _provided by [EuroHPC CoE MultiXscale](https://www.multixscale.eu)_
 
@@ -31,20 +31,30 @@ If you haven't joined the EESSI Slack yet, [click here to join]({{ config.extra.
 
 ---
 
-### 💡 **First session in 2026**: EESSI Roadmap 2026
-### Topic Series: EESSI Roadmap 2026
+### 💡 **Next session**: Meet EESSI: Build Once. Run Everywhere.
+### Topic Series: EESSI Fundamentals Refresher
 🗓️ Schedule
-#### Monday 12 January 2026, 14:00-15:00 CE(S)T
+#### Monday 19 January 2026, 14:00-15:00 CE(S)T
 
 ---
 
-### Upcoming topic series: TBA shortly
+### Upcoming topic series: EESSI Fundamentals Refresher
 ###### Outline
 
-- 19 January 2026 - TBA shortly
+- 19 January 2026 - Meet EESSI: Build Once. Run Everywhere.
+- 27 January 2026 - EESSI in Motion
 
 ---
 
 ### Previous EESSI Happy Hour sessions
 
-* See [EESSI Happy Hour sessions in 2025](../2025/happy-hours-sessions.md#previous-eessi-happy-hour-sessions)
+[**YouTube playlist with recordings**](https://www.youtube.com/playlist?list=PL6_PkP_6pUtbzPBB1wZTdsrJgj6EbO-AS)
+
+See the full Recordings, slides, and materials here: [Previous Sessions & Videos](2026/happy-hours-previous-sessions.md)
+
+*Topic series: EESSI Roadmap 2026*
+
+- 12 January 2026 - [EESSI Roadmap 2026](https://youtu.be/M0g7VU5hPvg)
+
+---
+### 🧐 [EESSI Happy Hour sessions in 2025](2025/happy-hours-previous-sessions.md)

docs/training-events/index.md

@@ -2,12 +2,11 @@
 
 ## Upcoming events (2026)
 
-* [*EESSI happy hour sessions 2026*](2026/happy-hours-sessions.md) (online sessions **every** Monday, starting 12 January 2026)
+* [*EESSI happy hour sessions 2026*](./happy-hours-sessions.md) (online sessions **every** Monday, starting 12 January 2026)
 
 ### Past events (2025)
 
 * [*EESSI CI/CD Hackathon*](2025/hackathon-eurohpc-user-days.md) (hybrid event, 2 October 2025)
-
-* [*EESSI happy hour sessions 2025*](2025/happy-hours-sessions.md) (online sessions every Monday, starting 18 August 2025)
+* [*EESSI happy hour sessions 2025*](2025/happy-hours-previous-sessions.md) (online sessions every Monday, starting 18 August 2025)
 * [*EESSI webinar series (May-June 2025)*](2025/webinar-series-2025Q2.md) (online tutorials, 5/12/19/26 May & 2 June)
 

mkdocs.yml

@@ -113,11 +113,15 @@ plugins:
         pilot.md: repositories/pilot.md # https://www.eessi.io/docs/pilot is mentioned in the EESSI open access paper
         gpu.md: site_specific_config/gpu.md
         rocm.md: site_specific_config/rocm.md
+        # training/ was renamed to training-events/ + <year> subdirectory was removed for Happy Hour sessions
         training/index.md: training-events/index.md
-        training/2026/happy-hours-sessions.md: training-events/2026/happy-hours-sessions.md
-        training/2025/happy-hours-sessions.md: training-events/2025/happy-hours-sessions.md
+        training/happy-hours-sessions.md: training-events/happy-hours-sessions.md
+        training/2025/happy-hours-sessions.md: training-events/happy-hours-sessions.md
         training/2025/hackathon-eurohpc-user-days.md: training-events/2025/hackathon-eurohpc-user-days.md
+        training/2026/happy-hours-sessions.md: training-events/happy-hours-sessions.md
         training/2025/webinar-series-2025Q2.md: training-events/2025/webinar-series-2025Q2.md
+        training-events/2025/happy-hours-sessions.md: training-events/happy-hours-sessions.md
+        training-events/2026/happy-hours-sessions.md: training-events/happy-hours-sessions.md
   # Enable our custom plugin for json-ld metadata
   - inject_ld_json
     # link to any Markdown heading