diff --git a/scripts/install.sh b/scripts/install.sh
index 8e9980ffd..571a087c0 100644
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -57,6 +57,7 @@ if [ "$(uname -s)" = "Darwin" ]; then
     MINER_FILENAME="rustchain_mac_miner_v2.5.py"
     MINER_URL="${REPO_RAW}/miners/macos/${MINER_FILENAME}"
     FINGERPRINT_URL="${REPO_RAW}/miners/macos/fingerprint_checks.py"
+    MINER_CRYPTO_URL="${REPO_RAW}/miners/macos/miner_crypto.py"
 else
     MINER_FILENAME="rustchain_linux_miner.py"
     MINER_URL="${REPO_RAW}/miners/linux/rustchain_linux_miner.py"
@@ -602,7 +603,15 @@ CFGEOF
 
     # --- Generate miner ID ---
     local miner_id
-    miner_id=$(echo -n "${wallet}-${arch}-$(hostname)" | sha256sum 2>/dev/null | cut -c1-16 || echo "${wallet}")
+    if command -v sha256sum &>/dev/null; then
+        miner_id=$(printf '%s-%s-%s' "$wallet" "$arch" "$(hostname)" | sha256sum | cut -c1-16)
+    elif command -v shasum &>/dev/null; then
+        miner_id=$(printf '%s-%s-%s' "$wallet" "$arch" "$(hostname)" | shasum -a 256 | cut -c1-16)
+    elif command -v python3 &>/dev/null; then
+        miner_id=$(python3 -c 'import sys, hashlib; print(hashlib.sha256(f"{sys.argv[1]}-{sys.argv[2]}-{sys.argv[3]}".encode()).hexdigest()[:16])' "$wallet" "$arch" "$(hostname)" 2>/dev/null || echo "$wallet")
+    else
+        miner_id="${wallet}"
+    fi
 
     # --- Create service ---
     echo ""
diff --git a/tests/test_macos_installer_compatibility.py b/tests/test_macos_installer_compatibility.py
new file mode 100644
index 000000000..c128169f5
--- /dev/null
+++ b/tests/test_macos_installer_compatibility.py
@@ -0,0 +1,16 @@
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+INSTALLER = ROOT / "scripts" / "install.sh"
+
+
+def test_installer_defines_miner_crypto_url_for_macos():
+    script = INSTALLER.read_text(encoding="utf-8")
+    darwin_block = script.split('if [ "$(uname -s)" = "Darwin" ]; then')[1].split("else")[0]
+    assert "MINER_CRYPTO_URL=" in darwin_block
+
+
+def test_installer_uses_portable_sha256_for_miner_id():
+    script = INSTALLER.read_text(encoding="utf-8")
+    assert "shasum -a 256" in script
+    assert "hashlib.sha256" in script