diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0614cba684386b..9fb3502799c621 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -81,7 +81,7 @@ jobs:
 
       - name: Compile firmware
         run: |
-          IGNORE_ERRORS=1 make -j$(($(nproc) + 1)) || make -j1 V=s
+          IGNORE_ERRORS=1 make -j$(nproc) || make -j$(nproc) || make -j1 V=s
           echo "======================="
           echo "Space usage:"
           echo "======================="
diff --git a/private-key.pem b/private-key.pem
new file mode 100644
index 00000000000000..185947f1ee1441
--- /dev/null
+++ b/private-key.pem
@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIGsrHTka4ZbJzuhWQcAInoXBY0b5BxRSrbpc8Ck9lgphoAoGCCqGSM49
+AwEHoUQDQgAEb4wmdJw6NVaOLcJBncMadQGfyGf4deHDRcueNl7ZMHS81IRxxGkU
+hcWcXqz1OlL1ljrgJHmGeq8a7snCnseSLw==
+-----END EC PRIVATE KEY-----
diff --git a/public-key.pem b/public-key.pem
new file mode 100644
index 00000000000000..d10e18cea743c9
--- /dev/null
+++ b/public-key.pem
@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEb4wmdJw6NVaOLcJBncMadQGfyGf4
+deHDRcueNl7ZMHS81IRxxGkUhcWcXqz1OlL1ljrgJHmGeq8a7snCnseSLw==
+-----END PUBLIC KEY-----