diff --git a/strukturag/libde265/v1.0.12/libde265_llar.gox b/strukturag/libde265/v1.0.12/libde265_llar.gox
new file mode 100644
index 0000000..134def6
--- /dev/null
+++ b/strukturag/libde265/v1.0.12/libde265_llar.gox
@@ -0,0 +1,120 @@
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+id "strukturag/libde265"
+
+fromVer "v1.0.12"
+
+defaults {
+	"shared": "OFF",
+	"fPIC": "ON",
+	"sse": "ON",
+}
+
+filter => {
+	for values in target.options {
+		for value in values {
+			if value != "ON" && value != "OFF" {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+onBuild ctx => {
+	installDir := ctx.outputDir
+	shared := target.options["shared"][0] == "ON"
+	fPIC := target.options["fPIC"][0] == "ON"
+	sse := target.options["sse"][0] == "ON"
+
+	// The Conan recipe removes this upstream assignment so its fPIC option
+	// controls static builds instead of being overwritten during configure.
+	cmakeLists := filepath.join(ctx.SourceDir, "CMakeLists.txt")
+	source := string(os.readFile(cmakeLists)!)
+	source = strings.replace(source, "set(CMAKE_POSITION_INDEPENDENT_CODE ON)\n", "", 1)
+	os.writeFile(cmakeLists, []byte(source), 0644)!
+
+	c := cmake.new(ctx.SourceDir, filepath.join(ctx.SourceDir, "_build"), installDir)
+	c.define "CMAKE_INSTALL_LIBDIR", "lib"
+	c.define "CMAKE_POLICY_VERSION_MINIMUM", "3.5"
+	c.defineBool "BUILD_SHARED_LIBS", shared
+	c.defineBool "CMAKE_POSITION_INDEPENDENT_CODE", fPIC
+	c.defineBool "ENABLE_SDL", false
+	c.defineBool "DISABLE_SSE", !sse
+	c.configure
+	c.build
+	c.install
+
+	licenseDir := filepath.join(installDir, "licenses")
+	os.mkdirAll(licenseDir, 0755)!
+	os.writeFile(filepath.join(licenseDir, "COPYING"), os.readFile(filepath.join(ctx.SourceDir, "COPYING"))!, 0644)!
+
+	// The upstream file embeds the install directory and keeps static runtime
+	// libraries private. Make the published metadata relocatable and complete
+	// for the static C consumer used by this Formula.
+	pcPath := filepath.join(installDir, "lib", "pkgconfig", "libde265.pc")
+	pc := string(os.readFile(pcPath)!)
+	pc = strings.replace(pc, "prefix="+installDir, "prefix=$${pcfiledir}/../..", 1)
+	lines := pc.split("\n")
+	privateLibs := ""
+	privateCflags := ""
+	for line in lines {
+		if line.hasPrefix("Libs.private:") {
+			privateLibs = line.trimPrefix("Libs.private:").trimSpace()
+		}
+		if line.hasPrefix("Cflags.private:") {
+			privateCflags = line.trimPrefix("Cflags.private:").trimSpace()
+		}
+	}
+	if !shared {
+		for i, line in lines {
+			if privateLibs != "" && line.hasPrefix("Libs:") {
+				lines[i] = line + " " + privateLibs
+			}
+			if privateCflags != "" && line.hasPrefix("Cflags:") {
+				lines[i] = line + " " + privateCflags
+			}
+		}
+	}
+	os.writeFile(pcPath, []byte(strings.join(lines, "\n")), 0644)!
+
+	pkgconfig.use installDir
+	ctx.setMetadata pkgconfig.lookup("libde265")!
+}
+
+onTest ctx => {
+	installDir := ctx.outputDir
+	testDir := filepath.join(ctx.SourceDir, "_llar_consumer")
+	testBuild := filepath.join(testDir, "_build")
+	consumer := filepath.join(testDir, "consumer.c")
+	binary := filepath.join(testBuild, "consumer")
+
+	os.mkdirAll(testDir, 0755)!
+	os.mkdirAll(testBuild, 0755)!
+	os.writeFile(consumer, []byte(`#include <libde265/de265.h>
+
+int main(void) {
+    de265_decoder_context *ctx = de265_new_decoder();
+    de265_free_decoder(ctx);
+    return 0;
+}
+`), 0644)!
+
+	pkgconfig.use installDir
+	flags := pkgconfig.lookup("libde265")!
+	flagsFile := filepath.join(testDir, "libde265.flags")
+	os.writeFile(flagsFile, []byte(flags), 0644)!
+
+	exec "cc", "-std=c11", "@"+flagsFile, consumer, "-o", binary
+	lastErr!
+	if target.options["shared"][0] == "ON" {
+		os.setenv("LD_LIBRARY_PATH", filepath.join(installDir, "lib"))!
+		os.setenv("DYLD_LIBRARY_PATH", filepath.join(installDir, "lib"))!
+	}
+	exec binary
+	lastErr!
+}
diff --git a/strukturag/libde265/v1.0.17/libde265_llar.gox b/strukturag/libde265/v1.0.17/libde265_llar.gox
new file mode 100644
index 0000000..30510bb
--- /dev/null
+++ b/strukturag/libde265/v1.0.17/libde265_llar.gox
@@ -0,0 +1,112 @@
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+id "strukturag/libde265"
+
+fromVer "v1.0.17"
+
+defaults {
+	"shared": "OFF",
+	"fPIC": "ON",
+}
+
+filter => {
+	for values in target.options {
+		for value in values {
+			if value != "ON" && value != "OFF" {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+onBuild ctx => {
+	installDir := ctx.outputDir
+	shared := target.options["shared"][0] == "ON"
+	fPIC := target.options["fPIC"][0] == "ON"
+
+	cmakeLists := filepath.join(ctx.SourceDir, "CMakeLists.txt")
+	source := string(os.readFile(cmakeLists)!)
+	source = strings.replace(source, "set(CMAKE_POSITION_INDEPENDENT_CODE ON)\n", "", 1)
+	os.writeFile(cmakeLists, []byte(source), 0644)!
+
+	c := cmake.new(ctx.SourceDir, filepath.join(ctx.SourceDir, "_build"), installDir)
+	c.define "CMAKE_INSTALL_LIBDIR", "lib"
+	c.define "CMAKE_POLICY_VERSION_MINIMUM", "3.16"
+	c.defineBool "BUILD_SHARED_LIBS", shared
+	c.defineBool "CMAKE_POSITION_INDEPENDENT_CODE", fPIC
+	c.defineBool "ENABLE_SDL", false
+	c.configure
+	c.build
+	c.install
+
+	licenseDir := filepath.join(installDir, "licenses")
+	os.mkdirAll(licenseDir, 0755)!
+	os.writeFile(filepath.join(licenseDir, "COPYING"), os.readFile(filepath.join(ctx.SourceDir, "COPYING"))!, 0644)!
+
+	pcPath := filepath.join(installDir, "lib", "pkgconfig", "libde265.pc")
+	pc := string(os.readFile(pcPath)!)
+	pc = strings.replace(pc, "prefix="+installDir, "prefix=$${pcfiledir}/../..", 1)
+	lines := pc.split("\n")
+	privateLibs := ""
+	privateCflags := ""
+	for line in lines {
+		if line.hasPrefix("Libs.private:") {
+			privateLibs = line.trimPrefix("Libs.private:").trimSpace()
+		}
+		if line.hasPrefix("Cflags.private:") {
+			privateCflags = line.trimPrefix("Cflags.private:").trimSpace()
+		}
+	}
+	if !shared {
+		for i, line in lines {
+			if privateLibs != "" && line.hasPrefix("Libs:") {
+				lines[i] = line + " " + privateLibs
+			}
+			if privateCflags != "" && line.hasPrefix("Cflags:") {
+				lines[i] = line + " " + privateCflags
+			}
+		}
+	}
+	os.writeFile(pcPath, []byte(strings.join(lines, "\n")), 0644)!
+
+	pkgconfig.use installDir
+	ctx.setMetadata pkgconfig.lookup("libde265")!
+}
+
+onTest ctx => {
+	installDir := ctx.outputDir
+	testDir := filepath.join(ctx.SourceDir, "_llar_consumer")
+	testBuild := filepath.join(testDir, "_build")
+	consumer := filepath.join(testDir, "consumer.c")
+	binary := filepath.join(testBuild, "consumer")
+
+	os.mkdirAll(testDir, 0755)!
+	os.mkdirAll(testBuild, 0755)!
+	os.writeFile(consumer, []byte(`#include <libde265/de265.h>
+
+int main(void) {
+    de265_decoder_context *ctx = de265_new_decoder();
+    de265_free_decoder(ctx);
+    return 0;
+}
+`), 0644)!
+
+	pkgconfig.use installDir
+	flags := pkgconfig.lookup("libde265")!
+	flagsFile := filepath.join(testDir, "libde265.flags")
+	os.writeFile(flagsFile, []byte(flags), 0644)!
+
+	exec "cc", "-std=c11", "@"+flagsFile, consumer, "-o", binary
+	lastErr!
+	if target.options["shared"][0] == "ON" {
+		os.setenv("LD_LIBRARY_PATH", filepath.join(installDir, "lib"))!
+		os.setenv("DYLD_LIBRARY_PATH", filepath.join(installDir, "lib"))!
+	}
+	exec binary
+	lastErr!
+}
diff --git a/strukturag/libde265/versions.json b/strukturag/libde265/versions.json
new file mode 100644
index 0000000..ce92122
--- /dev/null
+++ b/strukturag/libde265/versions.json
@@ -0,0 +1,4 @@
+{
+  "path": "strukturag/libde265",
+  "deps": {}
+}