docs: topic notes 2026-07-09 (keys-wire, ipv6, castopod, …)

2026/2026-07-09--castopod-content.md

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+# Castopod pilot content — FOSS Airwaves (2026-07-09)
+
+Public: **https://castopod.hacktivism.ch/@foss**  
+RSS: **https://castopod.hacktivism.ch/@foss/feed.xml**
+
+## Users
+
+| Username | Email | Role | Notes |
+|----------|-------|------|--------|
+| `admin` | `admin@castopod.hacktivism.ch` | instance **superadmin** | install account |
+| `ngi` | `ngi@castopod.hacktivism.ch` | group **podcaster** + podcast `@foss` **author** | content account |
+
+Passwords: **not in admin-log** — host  
+`/home/hernani/koopa-castopod/users.env` (mode 600).
+
+Login: https://castopod.hacktivism.ch/cp-auth/login
+
+## Podcast
+
+| Field | Value |
+|-------|--------|
+| Title | **FOSS Airwaves** |
+| Handle | `@foss` |
+| Category | Technology (+ Tech News, Education) |
+| Copyright / license line | Text **CC BY-SA 4.0**; cover graphics **CC BY-SA 4.0**; audio beds SoundHelix free demo music |
+| Owner | NGI FOSS Airwaves / `ngi@…` |
+
+## Episodes (published)
+
+| # | Slug | Title | License of show notes |
+|---|------|-------|------------------------|
+| 1 | `four-freedoms` | Four Freedoms: Why Free Software Matters | **CC BY-SA 4.0** |
+| 2 | `free-licenses` | Copyleft vs Permissive Free Licenses | **CC BY-SA 4.0** |
+| 3 | `free-culture-fediverse` | Free Culture Podcasting on the Fediverse | **CC BY-SA 4.0** |
+
+Public episode URLs:
+
+- https://castopod.hacktivism.ch/@foss/episodes/four-freedoms  
+- https://castopod.hacktivism.ch/@foss/episodes/free-licenses  
+- https://castopod.hacktivism.ch/@foss/episodes/free-culture-fediverse  
+
+### Content themes (free software / free culture)
+
+1. **Four Freedoms** — FSF definition; GPLv3 / AGPLv3 / MIT / Apache-2.0  
+2. **License comparison** — copyleft vs permissive; Creative Commons for non-software  
+3. **Fediverse podcasting** — Castopod (AGPL), ActivityPub, CC BY/SA notes  
+
+### Media notes
+
+- Episode audio: **SoundHelix** free demo music (free use for projects) as placeholder bed; not a full spoken episode.  
+- Transcript stubs (.srt) and JSON chapters attached as placeholders.  
+- Cover/banner: generated art marked **CC BY-SA 4.0**.
+
+## Ops
+
+```bash
+# as hernani
+cd ~/koopa-castopod && podman-compose ps
+# secrets / passwords
+ls -la ~/koopa-castopod/{.env,users.env}
+```
+
+Stack: `koopa-castopod` + mariadb + redis, Caddy → **9020**.