diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..beaed31
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,22 @@
+name: 'build'
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps: 
+      - uses: actions/checkout@v1
+      - name: Build bootloader and partition table
+        uses: docker://docker.io/espressif/idf:release-v4.3
+        with:
+          args: ./build.sh
+      - name: Update release
+        if: "github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/')"
+        uses: eine/tip@master
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          files: |
+            out/*
+          tag: latest
+          rm: true
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..63de16e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+build
+out
+sdkconfig
+sdkconfig.old
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..ab98ba4
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 3.5)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(dummy)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..39bfcec
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# Bootloader and partition table for NuttX
+
+This repository contains a minimal ESP-IDF project and build scripts used to produce 2nd stage bootloader and partition table binaries. Users of NuttX RTOS can download the binaries from release artifacts in this repository.
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..aac4593
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+targets="esp32 esp32s2 esp32c3"
+
+mkdir -p out
+
+for target in ${targets}; do
+    idf.py set-target ${target}
+    idf.py bootloader partition_table
+    cp build/bootloader/bootloader.bin out/bootloader-${target}.bin
+    cp build/partition_table/partition-table.bin out/partition-table-${target}.bin
+    cp sdkconfig out/sdkconfig
+done
diff --git a/partitions.csv b/partitions.csv
new file mode 100644
index 0000000..be23c65
--- /dev/null
+++ b/partitions.csv
@@ -0,0 +1,2 @@
+# Name,   Type, SubType, Offset,  Size, Flags
+factory,  app,  factory, ,        1M,
diff --git a/sdkconfig.defaults b/sdkconfig.defaults
new file mode 100644
index 0000000..91d7574
--- /dev/null
+++ b/sdkconfig.defaults
@@ -0,0 +1,2 @@
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"