Add Happy-hour-016 slides+recording

Author: Richard Top

docs/training-events/2025/EESSI-happyhour-2025-016-EESSI-Bot-Goals-Design.pdf

@@ -4,6 +4,17 @@ Find slides, and video recordings of earlier sessions below.
 
 ---
 
+# Topic series: Scaling Software Builds Across Architectures with Automation
+
+### Monday 01 December 2025
+
+**Outline:** Goals and Design Decisions Behind a Multi-Architecture Build Bot
+([Slides (PDF)](EESSI-happyhour-2025-016-EESSI-Bot-Goals-Design.pdf), [Recording (YouTube)](https://youtu.be/4zYMlZXUGKI))
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/4zYMlZXUGKI?si=uBHw5I7RG-sv3fmD" 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: EESSI dashboard and ReFrame tests
 
 ### Monday 24 November 2025

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

@@ -31,18 +31,16 @@ If you haven't joined the EESSI Slack yet, [click here to join](https://join.sla
 
 ---
 
-### 💡 **Next Session**: Goals and Design Decisions Behind a Multi-Architecture Build Bot
+### 💡 **Next Session**: How It Works: Event Triggers, Build Clusters, and Automated Packaging at Scale
 ### Topic Series: Scaling Software Builds Across Architectures with Automation
 🗓️ Schedule
-#### Monday 01 December 2025, 14:00-15:00 CE(S)T
+#### Monday 08 December 2025, 14:00-15:00 CE(S)T
 
 ---
 
 ### Upcoming sessions in the topic series: Scaling Software Builds Across Architectures with Automation
 ###### Outline
 
-- 01 December 2025 - Goals and Design Decisions Behind a Multi-Architecture Build Bot
-
 - 08 December 2025 - How It Works: Event Triggers, Build Clusters, and Automated Packaging at Scale
 
 ---
@@ -53,6 +51,12 @@ If you haven't joined the EESSI Slack yet, [click here to join](https://join.sla
 
 See the full Recordings, slides, and materials here: [Previous Sessions & Videos](./happy-hours-previous-sessions.md)
 
+*Topic series: Scaling Software Builds Across Architectures with Automation*
+
+- 01 December 2025 [Goals and Design Decisions Behind a Multi-Architecture Build Bot](https://youtu.be/4zYMlZXUGKI)
+
+---
+
 *Topic series: EESSI dashboard and ReFrame tests*
 
 - 24 November 2025 [EESSI ReFrame tests](https://youtu.be/g9_In2AmhhY)