NNTP Proxy/Server Core: Initial Implementation (Server.go)

.github/copilot-instructions.md

@@ -13,7 +13,7 @@ Always reference these instructions first and fallback to search or bash command
   # For cross-compilation (optional):
   apt-get install gcc-aarch64-linux-gnu binutils-aarch64-linux-gnu mingw-w64 gcc-mingw-w64-x86-64 g++-mingw-w64-x86-64 g++-aarch64-linux-gnu
   ```
-- Go 1.24.3 or later is required (as specified in go.mod)
+- Go 1.27.2 or later is required (as specified in go.mod)
 - CMake 3.31+ is required for building rapidyenc
 
 ### Bootstrap, Build, and Test the Repository

.github/release-notes.md

@@ -0,0 +1,19 @@
+## Which file?
+
+| You use | Download |
+|---|---|
+| Linux (any distro, also Alpine) | `NZBreX_@TAG@_linux-amd64_purego.tar.gz` (arm64: `linux-arm64`) |
+| Debian / Ubuntu | `nzbrex_@VER@_amd64_purego.deb` (arm64: `_arm64_`), install with `sudo apt install ./nzbrex_….deb` |
+| Windows | `NZBreX_@TAG@_windows-amd64_purego.zip` (ARM: `windows-arm64`) |
+| macOS | `NZBreX_@TAG@_darwin-arm64_purego.tar.gz` (Intel: `darwin-amd64`) |
+| FreeBSD | `NZBreX_@TAG@_freebsd-amd64_purego.tar.gz` |
+
+**purego** is the default and fine for everyone. The **rapidyenc** files use rapidyenc's C decoder for `-yenctest=4`, which is faster on paper; decoding is far faster than any download either way. They exist for Linux amd64/arm64, Windows amd64 and macOS arm64; the Linux ones need glibc 2.35 or newer.
+
+Each archive contains the binary, `README.md`, `LICENSE`, `cleanHeaders.txt` and the provider samples.
+
+## Check the download
+
+```sh
+sha256sum -c SHA256SUMS --ignore-missing
+```