diff --git a/rscada/libmbus/0.10.2/libmbus_llar.gox b/rscada/libmbus/0.10.2/libmbus_llar.gox
new file mode 100644
index 0000000..d8f2dc2
--- /dev/null
+++ b/rscada/libmbus/0.10.2/libmbus_llar.gox
@@ -0,0 +1,120 @@
+import (
+	"os"
+	"path/filepath"
+	"slices"
+	"strings"
+)
+
+const consumerSource = `#include <mbus/mbus.h>
+#include <string.h>
+
+int main(void) {
+    unsigned char ack = 0xE5;
+    mbus_frame frame;
+    mbus_handle *handle;
+
+    memset(&frame, 0, sizeof(frame));
+    if (mbus_parse(&frame, &ack, 1) != 0) {
+        return 1;
+    }
+    if (mbus_get_current_version() == 0) {
+        return 1;
+    }
+
+    handle = mbus_context_serial("/dev/null");
+    if (handle == 0) {
+        return 1;
+    }
+    mbus_context_free(handle);
+    return 0;
+}
+`
+
+id "rscada/libmbus"
+
+fromVer "0.10.2"
+
+defaults {
+	"shared": "OFF",
+	"fPIC": "ON",
+}
+
+filter => {
+	for name, values in target.options {
+		if name != "shared" && name != "fPIC" {
+			return false
+		}
+		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"
+
+	os.chdir(ctx.SourceDir)!
+	os.mkdirAll(filepath.join(ctx.SourceDir, "m4"), 0o755)!
+	if slices.contains(target.require["os"], "darwin") {
+		glibtoolize! "--copy", "--force"
+	} else {
+		libtoolize! "--copy", "--force"
+	}
+	autoreconf! "-fi"
+
+	picFlag := "--without-pic"
+	if fPIC {
+		picFlag = "--with-pic"
+	}
+
+	a := autotools.new(ctx.SourceDir, filepath.join(ctx.SourceDir, "_build"), installDir)
+	if shared {
+		a.configure "--enable-shared", "--disable-static", picFlag
+	} else {
+		a.configure "--disable-shared", "--enable-static", picFlag
+	}
+	a.build
+	a.install
+
+	licenseDir := filepath.join(installDir, "licenses")
+	os.mkdirAll(licenseDir, 0o755)!
+	os.writeFile(filepath.join(licenseDir, "LICENSE"), os.readFile(filepath.join(ctx.SourceDir, "LICENSE"))!, 0o644)!
+
+	pcPath := filepath.join(installDir, "lib", "pkgconfig", "libmbus.pc")
+	pc := string(os.readFile(pcPath)!)
+	pc = strings.replace(pc, "prefix="+installDir, "prefix=$${pcfiledir}/../..", 1)
+	pc = strings.replace(pc, "exec_prefix="+installDir, "exec_prefix=$${prefix}", 1)
+	pc = strings.replace(pc, "libdir="+filepath.join(installDir, "lib"), "libdir=$${prefix}/lib", 1)
+	pc = strings.replace(pc, "includedir="+filepath.join(installDir, "include"), "includedir=$${prefix}/include", 1)
+	os.writeFile(pcPath, []byte(pc), 0o644)!
+
+	pkgconfig.use installDir
+	ctx.setMetadata pkgconfig.lookup("libmbus")!
+}
+
+onTest ctx => {
+	installDir := ctx.outputDir
+	testDir := filepath.join(ctx.SourceDir, "_llar_consumer")
+	os.mkdirAll(testDir, 0o755)!
+
+	sourcePath := filepath.join(testDir, "consumer.c")
+	os.writeFile(sourcePath, []byte(consumerSource), 0o644)!
+
+	pkgconfig.use installDir
+	flagsFile := filepath.join(testDir, "libmbus.flags")
+	os.writeFile(flagsFile, []byte(pkgconfig.lookup("libmbus")!), 0o644)!
+
+	binary := filepath.join(testDir, "consumer")
+	cc! sourcePath, "-o", binary, "@"+flagsFile
+
+	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
+}
diff --git a/rscada/libmbus/libmbus_cmp.gox b/rscada/libmbus/libmbus_cmp.gox
new file mode 100644
index 0000000..37d6fc8
--- /dev/null
+++ b/rscada/libmbus/libmbus_cmp.gox
@@ -0,0 +1,12 @@
+import "strings"
+
+func normalize(version string) string {
+	if strings.hasPrefix(version, "v") {
+		return version
+	}
+	return "v" + version
+}
+
+compareVer (a, b) => {
+	return semver.Compare(normalize(a.Version), normalize(b.Version))
+}
diff --git a/rscada/libmbus/versions.json b/rscada/libmbus/versions.json
new file mode 100644
index 0000000..2590315
--- /dev/null
+++ b/rscada/libmbus/versions.json
@@ -0,0 +1,4 @@
+{
+  "path": "rscada/libmbus",
+  "deps": {}
+}