Finally eliminate the +lib target.

lib/algorithms/build.py

@@ -0,0 +1,21 @@
+from build.c import cxxlibrary
+
+cxxlibrary(
+    name="algorithms",
+    srcs=["./readerwriter.cc"],
+    hdrs={
+        "lib/algorithms/readerwriter.h": "./readerwriter.h",
+    },
+    deps=[
+        "lib/core",
+        "lib/config",
+        "lib/data",
+        "lib/usb",
+        "lib/encoders",
+        "lib/decoders",
+        "lib/fluxsource",
+        "lib/fluxsink",
+        "lib/imagereader",
+        "lib/imagewriter",
+    ],
+)