nikicat · nikicat · Jun 23, 2026 · Jun 23, 2026 · Jun 23, 2026
diff --git a/.github/workflows/build-image.yml b/.github/workflows/build-image.yml
@@ -28,7 +28,7 @@ permissions:
   packages: write
 
 env:
-  # GHCR image, derived from the repo (e.g. ghcr.io/nikicat/tg-echo-service).
+  # GHCR image, derived from the repo (e.g. ghcr.io/nikicat/tg-echo).
   # Assumes the repo owner/name are lowercase, as GHCR requires.
   IMAGE: ghcr.io/${{ github.repository }}
   # Published tag: the git tag name on a tag push, otherwise "latest" (master).

diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.16)
 # ASM is needed to assemble openh264's aarch64 NEON .S files on arm64. openh264
 # also ships x86 SIMD, but as NASM/YASM .asm (needs a separate assembler) which
 # this build doesn't wire up, so x86_64 falls back to the portable C++ paths.
-project(call_service LANGUAGES C CXX ASM)
+project(tg-echo LANGUAGES C CXX ASM)
 
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -238,17 +238,17 @@ set(TD_INSTALL_DIR "${CMAKE_SOURCE_DIR}/td-install")
 list(APPEND CMAKE_PREFIX_PATH "${TD_INSTALL_DIR}")
 find_package(Td REQUIRED)
 
-# -- Our call_service binary --
-add_executable(call_service main.cpp)
+# -- Our tg-echo binary --
+add_executable(tg-echo main.cpp)
 
-target_link_libraries(call_service PRIVATE
+target_link_libraries(tg-echo PRIVATE
   tgcalls
   Td::TdStatic
   mp3lame
   yuv  # libyuv: I420 scaling for incoming-video recording (brings its include dir)
 )
 
-target_include_directories(call_service PRIVATE
+target_include_directories(tg-echo PRIVATE
   "${TGCALLS_DIR}"
   "${TGCALLS_DIR}/tgcalls"
   "${WEBRTC_DIR}"
@@ -257,7 +257,7 @@ target_include_directories(call_service PRIVATE
   "${STUB_DIR}"
 )
 
-target_compile_definitions(call_service PRIVATE
+target_compile_definitions(tg-echo PRIVATE
   WEBRTC_POSIX
   WEBRTC_LINUX
   NDEBUG
@@ -267,7 +267,7 @@ target_compile_definitions(call_service PRIVATE
 # Arch-specific WebRTC defines, mirroring what BuildWebRTC.cmake sets on the
 # webrtc target so inline header code compiles the same way in this TU.
 if(ANDROID_ABI STREQUAL "x86_64")
-  target_compile_definitions(call_service PRIVATE HAVE_SSE2)
+  target_compile_definitions(tg-echo PRIVATE HAVE_SSE2)
 elseif(ANDROID_ABI STREQUAL "arm64-v8a")
-  target_compile_definitions(call_service PRIVATE WEBRTC_ARCH_ARM64 WEBRTC_HAS_NEON)
+  target_compile_definitions(tg-echo PRIVATE WEBRTC_ARCH_ARM64 WEBRTC_HAS_NEON)
 endif()
diff --git a/Containerfile b/Containerfile
@@ -48,8 +48,8 @@ RUN cmake --build build -j$(nproc) --target tgcalls
 
 # App source (only this layer rebuilds on main.cpp changes)
 COPY main.cpp .
-RUN cmake --build build -j$(nproc) --target call_service
-RUN strip -s build/call_service
+RUN cmake --build build -j$(nproc) --target tg-echo
+RUN strip -s build/tg-echo
 
 # Collect the binary's shared-library closure (minus the glibc core the runtime
 # base already ships) into a flat dir. The runtime stage drops these into
@@ -58,7 +58,7 @@ RUN strip -s build/call_service
 # would clobber, breaking the dynamic linker. This keeps the runtime minimal
 # without hand-listing version-suffixed Debian packages, identically on amd64/arm64.
 RUN mkdir -p /rootfs && \
-    ldd build/call_service | awk '/=> \//{print $3}' | sort -u | \
+    ldd build/tg-echo | awk '/=> \//{print $3}' | sort -u | \
     grep -vE '/(ld-linux.*|libc|libm|libdl|libpthread|librt|libresolv|libgcc_s)\.so' | \
     xargs -I{} cp -L {} /rootfs/
 
@@ -76,6 +76,6 @@ WORKDIR /app
 # libs (and their soname links) without touching system lib dirs.
 COPY --from=builder /rootfs/ /usr/local/lib/
 RUN ldconfig
-COPY --from=builder /src/build/call_service .
+COPY --from=builder /src/build/tg-echo .
 
-ENTRYPOINT ["./call_service"]
+ENTRYPOINT ["./tg-echo"]
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Nikolay Bryskin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/Makefile b/Makefile
@@ -10,7 +10,7 @@ else
 endif
 export CMAKE_BUILD_PARALLEL_LEVEL
 
-IMAGE ?= docker.io/nikicat/tg-echo-service
+IMAGE ?= docker.io/nikicat/tg-echo
 
 # Extra flags for the main image build. CI injects layer-cache flags here
 # (e.g. --layers --cache-from/--cache-to <registry>); empty for local builds.
@@ -45,10 +45,10 @@ configure: build/Makefile
 build/Makefile: CMakeLists.txt tdlib
 	cmake -B build -DCMAKE_BUILD_TYPE=$(BUILD_TYPE)
 
-# Build call_service binary
-build: build/call_service
+# Build tg-echo binary
+build: build/tg-echo
 
-build/call_service: build/Makefile main.cpp
+build/tg-echo: build/Makefile main.cpp
 	cmake --build build -j$(CMAKE_BUILD_PARALLEL_LEVEL)
 
 # Generate a test prompt (440Hz beeps, MP3). Override count: make prompt BEEPS=2
@@ -73,12 +73,12 @@ glados-prompt:
 # Run the service (requires API_ID and API_HASH env vars)
 run: build prompt
 	mkdir -p recordings
-	./build/call_service
+	./build/tg-echo
 
 # Run the already-built binary, skipping the build/prompt prerequisites
 run-only:
 	mkdir -p recordings
-	./build/call_service
+	./build/tg-echo
 
 image-tools:
 	podman build --build-arg BASE_IMAGE=$(BASE_IMAGE) -t $(IMAGE)-tools:$(TAG) -f Containerfile.tools .

diff --git a/NOTICE.md b/NOTICE.md
@@ -0,0 +1,28 @@
+# Third-party licenses
+
+The original source in this repository (`main.cpp`, `video_platform.cpp`, the
+`stub/` helpers, and the build glue) is licensed under the MIT License — see
+[LICENSE](LICENSE).
+
+It is built against, and statically links, several vendored dependencies
+(under `vendor/`) that carry their own licenses. The most important one is
+**tgcalls (LGPL v3)**: because the resulting binary links it, any binary you
+distribute must remain relinkable against a modified tgcalls, per the LGPL.
+If you only run the service yourself, this does not apply.
+
+| Dependency | Upstream | License |
+|------------|----------|---------|
+| tgcalls | [TGX-Android/tgcalls](https://github.com/TGX-Android/tgcalls) | LGPL v3 |
+| WebRTC | [TGX-Android/webrtc](https://github.com/TGX-Android/webrtc) | BSD-3-Clause |
+| TDLib | [tdlib/td](https://github.com/tdlib/td) | Boost Software License 1.0 |
+| abseil-cpp | [abseil/abseil-cpp](https://github.com/abseil/abseil-cpp) | Apache-2.0 |
+| libsrtp | [cisco/libsrtp](https://github.com/cisco/libsrtp) | BSD-3-Clause |
+| usrsctp | [sctplab/usrsctp](https://github.com/sctplab/usrsctp) | BSD-3-Clause |
+| openh264 | [cisco/openh264](https://github.com/cisco/openh264) | BSD-2-Clause |
+| rnnoise | [xiph/rnnoise](https://github.com/xiph/rnnoise) | BSD-3-Clause |
+| crc32c | [google/crc32c](https://github.com/google/crc32c) | BSD-3-Clause |
+| libevent | [TGX-Android/libevent](https://github.com/TGX-Android/libevent) | BSD-3-Clause |
+| libyuv | [chromium/libyuv](https://chromium.googlesource.com/libyuv/libyuv) | BSD-3-Clause |
+
+Each dependency's full license text is available in its respective directory
+under `vendor/`.