diff --git a/hboehm.info/gc/package.yml b/hboehm.info/gc/package.yml
new file mode 100644
index 00000000..a013059f
--- /dev/null
+++ b/hboehm.info/gc/package.yml
@@ -0,0 +1,36 @@
+distributable:
+  url: https://github.com/ivmai/bdwgc/releases/download/v{{version}}/gc-{{version}}.tar.gz
+  strip-components: 1
+
+versions:
+  github: ivmai/bdwgc
+
+build:
+  dependencies:
+    tea.xyz/gx/cc: c99
+    tea.xyz/gx/make: '*'
+    freedesktop.org/pkg-config: '*'
+    github.com/ivmai/libatomic_ops: '*'
+  script:
+    - ./configure $ARGS
+    - make --jobs {{ hw.concurrency }}
+    - make --jobs {{ hw.concurrency }} check
+    - make --jobs {{ hw.concurrency }} install
+
+  env:
+    ARGS:
+      - --prefix="{{prefix}}"
+      - --disable-debug
+      - --disable-dependency-tracking
+      - --enable-cplusplus
+      - --enable-static
+      - --enable-large-config
+
+test:
+  dependencies:
+    tea.xyz/gx/cc: c99
+    freedesktop.org/pkg-config: '*'
+  script:
+    - pkg-config --modversion bdw-gc | grep {{version}}
+    - cc test.c -lgc -o test
+    - ./test
diff --git a/hboehm.info/gc/test.cc b/hboehm.info/gc/test.cc
new file mode 100644
index 00000000..ae94ab4b
--- /dev/null
+++ b/hboehm.info/gc/test.cc
@@ -0,0 +1,16 @@
+#include <assert.h>
+#include <stdio.h>
+#include "gc.h"
+
+int main(void) {
+    int i;
+
+    GC_INIT();
+    for (i = 0; i < 10000000; ++i) {
+        int **p = (int **) GC_MALLOC(sizeof(int *));
+        int *q = (int *) GC_MALLOC_ATOMIC(sizeof(int));
+        assert(*p == 0);
+        *p = (int *) GC_REALLOC(q, 2 * sizeof(int));
+    }
+    return 0;
+}
diff --git a/projects/srtalliance.org/package.yml b/projects/srtalliance.org/package.yml
new file mode 100644
index 00000000..3e97a0fe
--- /dev/null
+++ b/projects/srtalliance.org/package.yml
@@ -0,0 +1,48 @@
+distributable:
+  url: https://github.com/Haivision/srt/archive/v{{version}}.tar.gz
+  strip-components: 1
+
+display-name: srt
+
+versions:
+  github: Haivision/srt
+
+dependencies:
+  openssl.org: '*'
+
+build:
+  dependencies:
+    tea.xyz/gx/cc: c99
+    tea.xyz/gx/make: '*'
+    cmake.org: '*'
+    freedesktop.org/pkg-config: '*'
+
+  script:
+    - cmake . $ARGS
+    - make --jobs {{ hw.concurrency }} install
+  env:
+    ARGS:
+      - -DWITH_OPENSSL_INCLUDEDIR={{deps.openssl.prefix}}/include
+      - -DWITH_OPENSSL_LIBDIR={{deps.openssl.prefix}}/lib
+      - -DCMAKE_INSTALL_BINDIR=bin
+      - -DCMAKE_INSTALL_LIBDIR=lib
+      - -DCMAKE_INSTALL_INCLUDEDIR=include
+      - -DCMAKE_INSTALL_PREFIX={{prefix}}
+      - -DCMAKE_BUILD_TYPE=Release
+      - -DCMAKE_FIND_FRAMEWORK=LAST
+      - -DCMAKE_VERBOSE_MAKEFILE=ON
+      - -Wno-dev
+      - -DBUILD_TESTING=OFF
+
+provides:
+  - bin/srt-ffplay
+  - bin/srt-file-transmit
+  - bin/srt-live-transmit
+  - bin/srt-tunnel
+
+test:
+  dependencies:
+    freedesktop.org/pkg-config: '*'
+  script:
+    - pkg-config --modversion srt | grep {{version}}
+    - pkg-config --modversion haisrt | grep {{version}}
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