diff --git a/dev-todos.txt b/dev-todos.txt
index bb6cac1..c3084bd 100644
--- a/dev-todos.txt
+++ b/dev-todos.txt
@@ -12,4 +12,3 @@ Tech/detail improvements:
   * Use react-virtualized instead of our own scroller, but we need total count known, and we need another solution for the CSS transitions in the outfit case
   * Restore good download behavior: use crossOrigin for everything, and remove cache-buster in the URL we use for canvas
   * Undo the local linking we did for @chakra-ui/core, react, and react-dom on Matchu's machine 😅
-  * validPetPoses should declare its own dimensions, so that misaligned caches won't misalign the data
diff --git a/src/app/SpeciesColorPicker.js b/src/app/SpeciesColorPicker.js
index 8844533..6e4c21e 100644
--- a/src/app/SpeciesColorPicker.js
+++ b/src/app/SpeciesColorPicker.js
@@ -65,7 +65,7 @@ function SpeciesColorPicker({ outfitState, dispatchToOutfit }) {
   const onChangeColor = (e) => {
     const speciesId = outfitState.speciesId;
     const colorId = e.target.value;
-    if (pairIsValid(valids, meta, speciesId, colorId)) {
+    if (pairIsValid(valids, speciesId, colorId)) {
       dispatchToOutfit({ type: "changeColor", colorId: e.target.value });
     } else {
       const species = allSpecies.find((s) => s.id === speciesId);
@@ -82,7 +82,7 @@ function SpeciesColorPicker({ outfitState, dispatchToOutfit }) {
   const onChangeSpecies = (e) => {
     const colorId = outfitState.colorId;
     const speciesId = e.target.value;
-    if (pairIsValid(valids, meta, speciesId, colorId)) {
+    if (pairIsValid(valids, speciesId, colorId)) {
       dispatchToOutfit({ type: "changeSpecies", speciesId: e.target.value });
     } else {
       const species = allSpecies.find((s) => s.id === speciesId);
@@ -133,12 +133,12 @@ function SpeciesColorPicker({ outfitState, dispatchToOutfit }) {
   );
 }
 
-function pairIsValid(valids, meta, speciesId, colorId) {
+function pairIsValid(valids, speciesId, colorId) {
   // Reading a bit table, owo!
   const speciesIndex = speciesId - 1;
   const colorIndex = colorId - 1;
-  const numColors = meta.allColors.length;
-  const pairByteIndex = speciesIndex * numColors + colorIndex;
+  const numColors = valids.getUint8(1);
+  const pairByteIndex = speciesIndex * numColors + colorIndex + 2;
   const pairByte = valids.getUint8(pairByteIndex);
   return pairByte !== 0;
 }
diff --git a/src/server/__snapshots__/getValidPetPoses.test.js.snap b/src/server/__snapshots__/getValidPetPoses.test.js.snap
index 4028d80..351b19a 100644
Binary files a/src/server/__snapshots__/getValidPetPoses.test.js.snap and b/src/server/__snapshots__/getValidPetPoses.test.js.snap differ
diff --git a/src/server/getValidPetPoses.js b/src/server/getValidPetPoses.js
index e8ea0ca..cda8586 100644
--- a/src/server/getValidPetPoses.js
+++ b/src/server/getValidPetPoses.js
@@ -30,7 +30,9 @@ export default async function getValidPetPoses() {
   }
 
   const numPairs = numSpecies * numColors;
-  const buffer = Buffer.alloc(numPairs);
+  const buffer = Buffer.alloc(numPairs + 2);
+  buffer.writeUInt8(numSpecies, 0);
+  buffer.writeUInt8(numColors, 1);
 
   for (let speciesId = 1; speciesId <= numSpecies; speciesId++) {
     const speciesIndex = speciesId - 1;
@@ -53,7 +55,7 @@ export default async function getValidPetPoses() {
       byte <<= 1;
       byte += hasPose(speciesId, colorId, "HAPPY", "MASCULINE") ? 1 : 0;
 
-      buffer.writeUInt8(byte, speciesIndex * numColors + colorIndex);
+      buffer.writeUInt8(byte, speciesIndex * numColors + colorIndex + 2);
     }
   }