diff --git a/README.md b/README.md
index cef95c4..ab62708 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,35 @@
# tertiary
-A three-piece keyboard: two mirrored halves plus a numpad/nav/media board that
-also carries the USB hub. One cable reaches the computer.
+A three-piece keyboard: two column-staggered halves plus a numpad/nav/media
+board that also carries the USB hub. One cable reaches the computer.
Status: **design**. No boards ordered, no firmware written.
+
+
+
+
+
+
+
+
+
+
+
+Derived from a full 104 rather than a compact ergo core — see
+[`docs/104-key-split.svg`](docs/104-key-split.svg) for how the original layout
+maps across the three boards.
+
+## Licence
+
+Not yet chosen. Until one is added, default copyright applies: you may read
+this, but not build, fork or reuse it. If that isn't the intent, add
+CERN-OHL-S or TAPR OHL for the hardware, and GPL-2.0 for anything derived from
+QMK.
+
+The PDFs under `Documents/` are vendor datasheets (WCH, ST) redistributed for
+convenience and are **not** covered by whatever licence this repo adopts.
+
---
## The three boards
@@ -311,5 +336,7 @@ Per house convention. This one is unusually clean:
- [ ] Nothing here touches LAN topology, credentials, or personal data — no
scrubbing needed, unlike most repos here.
- [ ] Confirm no JLC/LCSC account identifiers end up in fab exports.
-- [ ] Decide on a licence before publishing hardware files (CERN-OHL-S or
- TAPR OHL for hardware; GPL2 for anything derived from QMK).
+- [x] Scanned: no LAN topology, credentials or personal data in files or history.
+- [ ] **Licence still unchosen** — see the Licence section above.
+- [ ] Vendor datasheets in `Documents/` are redistributed third-party PDFs.
+ Consider linking instead of vendoring if that matters to you.
diff --git a/docs/104-key-split.svg b/docs/104-key-split.svg
index b94bce3..43d5127 100644
--- a/docs/104-key-split.svg
+++ b/docs/104-key-split.svg
@@ -1,119 +1,137 @@
\ No newline at end of file
diff --git a/docs/half-left-staggered.svg b/docs/half-left-staggered.svg
index 74af586..6c10748 100644
--- a/docs/half-left-staggered.svg
+++ b/docs/half-left-staggered.svg
@@ -1,44 +1,62 @@
\ No newline at end of file
diff --git a/docs/half-left.svg b/docs/half-left.svg
index 47b0c8d..31f6575 100644
--- a/docs/half-left.svg
+++ b/docs/half-left.svg
@@ -1,42 +1,60 @@
\ No newline at end of file
diff --git a/docs/half-right-staggered.svg b/docs/half-right-staggered.svg
index 863da5a..7ebec30 100644
--- a/docs/half-right-staggered.svg
+++ b/docs/half-right-staggered.svg
@@ -1,51 +1,69 @@
\ No newline at end of file
diff --git a/docs/half-right.svg b/docs/half-right.svg
index af26450..37a24fc 100644
--- a/docs/half-right.svg
+++ b/docs/half-right.svg
@@ -1,45 +1,63 @@
\ No newline at end of file
diff --git a/docs/numpad-layout.svg b/docs/numpad-layout.svg
index ac60c20..5ebb847 100644
--- a/docs/numpad-layout.svg
+++ b/docs/numpad-layout.svg
@@ -1,41 +1,59 @@
\ No newline at end of file
diff --git a/docs/three-board-overview.svg b/docs/three-board-overview.svg
index e44a426..0be8a58 100644
--- a/docs/three-board-overview.svg
+++ b/docs/three-board-overview.svg
@@ -1,115 +1,133 @@
\ No newline at end of file