diff --git a/README.md b/README.md
index a2808be..418f51f 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,16 @@ The open app store powered by your social network
 
 ## Build from source
 
+```bash
+# Using FVM (recommended for reproducible builds)
+# Note: do NOT use "stable" in FVM. This repo pins Flutter via .fvmrc.
+fvm install
+fvm flutter pub get
+fvm flutter build apk --split-per-abi --debug
+```
+
+Without FVM:
+
 ```bash
 flutter pub get
 flutter build apk --split-per-abi --debug