release: bump versionCode 5->6 for v0.4.4 + add changelog 6.txt

v0.4.3 already shipped as versionCode 5; a duplicate code would be rejected by Play and ignored by F-Droid. Bump to 6 unblocks the v0.4.4 release. QA gate passed (units + on-device E2E + visual render check screenshots in docs/qa/render-check/).

docs/marketing/reddit-localllama.md

@@ -0,0 +1,43 @@
+# r/LocalLLaMA — copy-paste ready
+
+> **Subreddit:** r/LocalLLaMA (~500k+ members, very active, technically sharp)
+> **Flair:** `Resources` or `Other` (this sub uses topic flairs, not "Project"; `Resources` fits a tool release best). If a `Tutorial`/`News` flair fits a future post, save those for the follow-up.
+> **Rules that matter here:** This community is allergic to cloud-first / closed products and to thin hype. Lead with the **bring-your-own / local-model** angle — emphasize that all inference stays on the user's hardware and the app is just a UI. No marketing voice; be a builder talking to builders. End with a real technical question to invite discussion (mods and users reward that, and it boosts comment count → ranking).
+> **Best time:** US daytime, but this sub is global and active late — 9am–1pm ET is safe.
+> `{{PLAY_URL}}` = `https://play.google.com/store/apps/details?id=cc.agentlabs.opencode` once approved.
+> **Sequencing:** Post this on a DIFFERENT day from r/selfhosted to avoid cross-post spam perception.
+
+---
+
+**Title:**
+
+```
+I built an Android app to control opencode from my phone — works with local LLMs via your existing opencode server config
+```
+
+**Body:**
+
+If you run [opencode](https://github.com/sst/opencode) with a local model (ollama, LM Studio, llama.cpp server, or any OpenAI-compatible endpoint), OpenCode Mobile gives you a real mobile client for those sessions.
+
+**The setup**
+
+opencode supports any OpenAI-compatible API via its provider config. Point it at your local model, run `opencode serve`, and the app connects over Tailscale / local network / tunnel. All inference stays on your hardware — the app is purely a UI. No keys, no prompts, and no model traffic ever go anywhere but between your phone and your box.
+
+**What you get on the phone**
+
+- Streaming output as your local model generates (token by token via SSE)
+- Inline diff viewer — see exactly what the agent is changing before approving
+- Tool-call approval UI — explicitly OK file writes and shell commands
+- Works with any model opencode supports: local LLMs, Claude, GPT, Gemini, or mixed
+- MIT licensed, biometric unlock, secrets in the Android Keystore
+
+**Source / install**
+
+- Source (MIT): https://github.com/dzianisv/opencode-mobile
+- Install (F-Droid + APK, one page): https://dzianisv.github.io/opencode-mobile/download/
+- All install options + guide: https://dzianisv.github.io/opencode-mobile/
+- F-Droid repo: https://dzianisv.github.io/opencode-mobile/fdroid/repo
+- Direct APK: https://github.com/dzianisv/opencode-mobile/releases/latest
+- Google Play: in review, live shortly — {{PLAY_URL}}
+
+I'm especially interested in feedback from people running local models: how does the streaming UI feel when tokens arrive at 3–5 tok/s on slower hardware? The renderer has a minimum repaint interval to avoid thrashing and I'm not sure the threshold is right for slow generation. Also curious which local backends people are pairing with opencode.