I've been working on an open-source ESP32-S3 firmware called ESP32 Tailnet Gateway. It turns a supported ESP32-S3 board into a lightweight Tailscale/Headscale gateway and independent recovery node. Features: Remote access to selected TCP/UDP services. Wake-on-LAN for NAS and PCs with reachability checks. Optional IoT Wi-Fi access point. MQTT and Home Assistant Discovery. Notifications, event history and resource monitoring. Browser-based firmware installation and Web UI. It runs on ESP32-S3 N8R8/N16R8 hardware with 8 MB octal PSRAM. Ethernet and cellular options are still experimental. It's not intended to replace a full Linux router. The firmware builds on Csontikka's ESP32 subnet-router and MicroLink work, with extensive Claude Code and Codex assistance. GitHub: https://github.com/Mattboxx/esp32-tailnet-gateway Web installer: https://mattboxx.github.io/esp32-tailnet-gateway/install-firmware/ I'd love feedback from other ESP32 developers!   submitted by   /u/Superb_Vegetable_550   to   r/diyelectronics [link]   [comments]