SmartDNS

CoreDNS is an open-source DNS server written in Go for DNS and service discovery. It uses a chain of plugins, with plugins available for Kubernetes service discovery, etcd, Prometheus metrics, query rewriting, zone-file serving, and cloud DNS providers such as Azure DNS, Google Cloud DNS, and AWS Route 53. It can be compiled with only the required plugins and is used in Kubernetes environments; the videos describe using it for in-cluster DNS with cross-cloud forwarding rules and DNS name rewrites so pods can address pods in other clusters. CoreDNS is a graduated Cloud Native Computing Foundation project licensed under the Apache License 2.0.

ESP32-C3 AdBlock is an open-source DNS ad-blocking firmware project for ESP32-C3 boards that do not have PSRAM. It extracts queried domains, computes 40-bit FNV-1a hashes including parent suffixes, and binary-searches sorted hashes stored in flash rather than loading domain strings into RAM. Matching queries receive a 0.0.0.0 sinkhole response; other queries are forwarded to an upstream resolver and relayed. The repository reports that the approach uses about 50 KB of RAM and supports blocklists ranging from the default roughly 100,000-domain configuration to an aggressive 537,000-domain list, subject to the selected flash partition layout and hash collisions. The firmware includes a web dashboard with statistics, client banning, custom block and allow entries, mDNS discovery at c3adblock.local, a captive portal for Wi-Fi setup, and over-the-air firmware and blocklist updates. The accompanying PlatformIO tooling converts hosts files, plain domain lists, and supported AdGuard or Adblock basic rules into the binary hash table; unsupported rule types are skipped and reported. State-changing dashboard endpoints and network OTA require configured credentials, while the device otherwise serves plain HTTP on the local network. The project is released under the MIT License.

HaGeZi DNS Blocklists is a maintained collection of DNS filtering lists for network-wide blocking of ads, affiliate links, trackers, telemetry, phishing, malware, scams, cryptojacking, and other unwanted or malicious domains. It provides Multi lists in Light, Normal, Pro, Pro++, and Ultimate variants, along with specialized lists for fake sites, pop-up ads, threat intelligence, newly registered domains, dynamic DNS abuse, URL shorteners, gambling, social networks, adult content, native device trackers, and other categories. Lists are distributed in formats compatible with Pi-hole, AdGuard, DNSMasq, RPZ, common DNS servers, ad blockers, and content blockers.

Free Claude Code is an independent open-source local proxy for routing Claude Code, Codex, Pi, OpenCode, and other coding-agent requests to selected free, paid, subscription, or local model providers while preserving their existing APIs. It provides a searchable model catalog and an Admin UI for configuring providers, supports automatic fallback to another configured model after provider retries are exhausted, and can be launched from a terminal, desktop app, IDE, Discord, Telegram, or phone. Optional RTK filtering reduces common terminal-output tokens, while voice input can use local Whisper or NVIDIA NIM transcription. The project states that it is not affiliated with or endorsed by Anthropic, and that provider free-tier availability and limits may change.