From e56648f99dbfe0ff01e6756c2794308b6412e123 Mon Sep 17 00:00:00 2001
From: Franco Victorio <victorio.franco@gmail.com>
Date: Thu, 12 Feb 2026 08:03:38 +0000
Subject: [PATCH] Use local data in development mode

---
 .gitignore                   | 3 +++
 script/prepare-chain-data.sh | 7 ++++++-
 src/lib/constants.ts         | 5 ++++-
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index 8f322f0d..b31d1432 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,9 @@ yarn-error.log*
 # local env files
 .env*.local
 
+# local dev data
+/public/data
+
 # vercel
 .vercel
 
diff --git a/script/prepare-chain-data.sh b/script/prepare-chain-data.sh
index 8ae31a97..2d96117e 100644
--- a/script/prepare-chain-data.sh
+++ b/script/prepare-chain-data.sh
@@ -44,4 +44,9 @@ cat > "$OUTPUT_FILE" <<EOL
 EOL
 
 bun fmt
-echo "✅ Successfully updated chains.json file"
\ No newline at end of file
+echo "✅ Successfully updated features.json file"
+
+# Copy data to public/ so Next.js can serve it locally in dev mode.
+rm -rf ./public/data
+cp -r ./script/data ./public/data
+echo "✅ Copied data to public/data for local dev"
\ No newline at end of file
diff --git a/src/lib/constants.ts b/src/lib/constants.ts
index 654dfb7f..8f2fb460 100644
--- a/src/lib/constants.ts
+++ b/src/lib/constants.ts
@@ -11,7 +11,10 @@ export const TWITTER_URL = 'https://twitter.com/msolomon44';
 
 // -------- Other Data --------
 const BRANCH_NAME = process.env.NEXT_PUBLIC_BRANCH_NAME;
-export const BASE_DATA_URL = `https://raw.githubusercontent.com/mds1/evm-diff/${BRANCH_NAME}/script/data`;
+export const BASE_DATA_URL =
+	process.env.NODE_ENV === 'development'
+		? '/data'
+		: `https://raw.githubusercontent.com/mds1/evm-diff/${BRANCH_NAME}/script/data`;
 
 // This defines the source of truth for the data that is shown/hidden on the website.
 export interface Feature {