docs: README + Pages landing overhaul for the v0.2.0-pre push

README:
- compress the Background section (two-agent detail now one tight
  paragraph; full write-up stays in agentic-development.md)
- new 'Beyond playing' section: tweak it (ini/F10/-fresh), read it
  (internals + porting notes as the entry points, src/ vs port/ split),
  mod it (MIT port layer, CONTRIBUTING ground rules, docs/dev record)
- Quick start no longer implies NTSC-U only

Pages (docs/index.md, served from main:/docs):
- status was stale ('alpha, v0.1.0') -- now v0.2.0 pre-release with the
  honest rough-edges summary linking to README #status
- new Downloads section up top: Windows + Linux/Steam Deck bundles with
  the no-ROM note and the four-step path
- 'Play it - or take it apart' CTA mirroring the README sentiment
  (try it / read the code / mod it / research angle)
- in-engine gallery (attract views + demo clip); more captures land
  here as playtesting continues

docs/index.md

@@ -1,30 +1,83 @@
 ---
 title: GoldenEye 007 PC Port
-description: Landing page for the GoldenEye 007 PC port — what it is, current status, and links to the build guide and engineering documentation.
+description: >-
+  A native PC port of the original Nintendo 64 GoldenEye 007, built from its
+  decompiled source with a software RSP. v0.2.0 pre-release is out for Windows
+  and Linux (including Steam Deck) — download it, drop in your own ROM, and
+  play; or dig into the code and the engineering record behind it.
 ---
 
 # GoldenEye 007 PC Port
 
-A work-in-progress native PC port of the original 1997 Nintendo 64
-_GoldenEye 007_, compiled from the game's
-[decompiled source](https://github.com/n64decomp/007) and running the N64's
-graphics coprocessor in software. It follows the architecture of the
-[Perfect Dark PC port](https://github.com/fgsfdsfgs/perfect_dark).
+A native PC port of the original 1997 Nintendo 64 _GoldenEye 007_, compiled
+from the game's [decompiled source](https://github.com/n64decomp/007) with
+the N64's graphics coprocessor (RSP) running in software. It follows the
+architecture of the
+[Perfect Dark PC port](https://github.com/fgsfdsfgs/perfect_dark), the same
+Rare "Indy" engine family, one hardware generation apart.
 
 It's also a case study in AI-agent collaboration on a large, low-level
-codebase: two coding agents (a local open-weight model, Qwen 3.8, on a single
-RTX 5090, and Claude / Claude Code), driven by one person part-time through
-~230 translation units of unmodified big-endian MIPS game code, handing work
-back and forth through shared written notes.
+codebase: two coding agents (a local open-weight model on a single RTX 5090,
+and Claude / Claude Code), driven by one person part-time through ~230
+translation units of unmodified big-endian MIPS game code, handing work back
+and forth through shared written notes.
 
-**Status:** alpha, [v0.1.0](https://github.com/jkdansereau/goldeneye-pc-port/releases)
-released. Runs the full single-player campaign — all 21 missions load, render,
-and are crash-free; a full re-playthrough confirming all 21 completable start
-to finish is still owed. In-level sound effects and in-level music both play;
-a handful of tracks have wrong-sounding instruments or occasional garbling.
-AI pacing and cutscenes are rough.
+**Status: v0.2.0 pre-release.** The full single-player campaign runs at a
+steady 60 fps with no known crashes, and audio (music + SFX) plays
+throughout. Known rough edges: cutscenes still glitch, a few music tracks
+sound wrong, and a handful of cosmetic rendering defects remain — the
+[README's Status section](https://github.com/jkdansereau/goldeneye-pc-port#status)
+is the honest list.
 
-- [Project repository and README](https://github.com/jkdansereau/goldeneye-pc-port) — build instructions, requirements, status, how it compares to the Xbox 360 recompilation projects.
+## Download
+
+| Platform | Bundle | Notes |
+|---|---|---|
+| **Windows** (x86_64) | [win64.zip](https://github.com/jkdansereau/goldeneye-pc-port/releases) | Engine + runtime DLLs + the one-time asset tool. |
+| **Linux** (x86_64) / **Steam Deck** | [linux tarball](https://github.com/jkdansereau/goldeneye-pc-port/releases) | SDL2 is bundled — it runs as-is on any distro, and sideloads onto a Deck with nothing installed. |
+
+Both bundles contain **no ROM and no game assets** — you supply your own
+GoldenEye 007 N64 ROM (the
+[Requirements table](https://github.com/jkdansereau/goldeneye-pc-port#requirements)
+has the three region filenames and SHA-1s). Then: unpack, drop the ROM in
+`data/`, run `prepare-assets` once, launch. The full four steps are in the
+[Quick start](https://github.com/jkdansereau/goldeneye-pc-port#quick-start);
+pre-built releases are legal to distribute precisely because they're useless
+without a ROM you already own.
+
+## Play it — or take it apart
+
+- **Try it yourself** — grab a bundle above, bring your own ROM, and play the
+  campaign. It's a pre-release cut for exactly this: if something breaks, an
+  [issue](https://github.com/jkdansereau/goldeneye-pc-port/issues) with what
+  you were doing is genuinely useful.
+- **Read the code** — the game logic in `src/` is unmodified decompilation;
+  every hardware surface (video, audio, input, save storage, and the
+  software-RSP renderer) is shimmed in the MIT-licensed `port/` layer.
+  [Internals](internals.md) is the map; [Porting notes](porting-notes.md) is
+  the catalogue of N64→PC bug classes hit along the way — a good read even if
+  you never touch the code.
+- **Mod it** — the port layer, build system and `tools_pc/` helpers are MIT
+  licensed and yours to extend: new video options, input tweaks, your own
+  asset sidecar. [CONTRIBUTING](https://github.com/jkdansereau/goldeneye-pc-port/blob/main/CONTRIBUTING.md)
+  has the ground rules that keep it faithful to the original game.
+- **The research angle** — [the two-agent development case study](dev/agentic-development.md):
+  goal, setup, timeline, the handoff workflow, and an honest assessment of
+  what did and didn't work.
+
+## In-engine
+
+<p align="center">
+  <img src="img/attract-bunker1.png" width="45%" alt="Bunker 1 intro camera, rendered by the port">
+  <img src="img/attract-dam.png" width="45%" alt="Dam intro camera, rendered by the port">
+</p>
+
+<p align="center">
+  <img src="media/goldeneye-demo.gif" width="60%" alt="~15 s of the port running: mission dossier, Facility, Silo, Jungle, Archives">
+  <br><em>~15 s of the port running: mission dossier &rarr; Facility &rarr; Silo &rarr; Jungle &rarr; Archives (the clip has no audio track).</em>
+</p>
+
+More in-engine captures land here as playtesting continues.
 
 ## Documentation