diff --git a/c/makefile b/c/makefile
index 98ca19b..d2aa645 100644
--- a/c/makefile
+++ b/c/makefile
@@ -15,6 +15,12 @@ build: $(BINS)
 $(BINS):
 	$(CC) -o $@ $@.c $(CFLAGS) $(LDFLAGS)
 
+run-pong:
+	$(VALGRIND) ./pong
+
+run-pongd:
+	$(VALGRIND) ./pongd
+
 clean:
 	rm $(BINS) 2>/dev/null
 
diff --git a/zig/build.zig b/zig/build.zig
index f3750fd..f982c79 100644
--- a/zig/build.zig
+++ b/zig/build.zig
@@ -1,16 +1,17 @@
 const std = @import("std");
+const module = std.Build.Module;
 
-fn link_and_install(exe : *std.Build.CompileStep) void {
-    const source_file = std.Build.FileSource.relative("./lib/ipc/src/main.zig");
-    // var empty : []const std.Build.ModuleDependency = &.{};
-    exe.addAnonymousModule("ipc", .{ .source_file = source_file, .dependencies = &.{} });
-    exe.linkLibC();
-
-    // This declares intent for the executable to be installed into the
-    // standard location when the user invokes the "install" step (the default
-    // step when running `zig build`).
-    exe.install();
-}
+//fn link_and_install(exe : *std.Build.CompileStep) void {
+//    const source_file = std.Build.FileSource.relative("./lib/ipc/src/main.zig");
+//    // var empty : []const std.Build.ModuleDependency = &.{};
+//    exe.addModule("ipc", .{ .source_file = source_file, .dependencies = &.{} });
+//    exe.linkLibC();
+//
+//    // This declares intent for the executable to be installed into the
+//    // standard location when the user invokes the "install" step (the default
+//    // step when running `zig build`).
+//    exe.install();
+//}
 
 // Although this function looks imperative, note that its job is to
 // declaratively construct a build graph that will be executed by an external
@@ -27,43 +28,63 @@ pub fn build(b: *std.Build) void {
     // set a preferred release mode, allowing the user to decide how to optimize.
     const optimize = b.standardOptimizeOption(.{});
 
+    const ipc_static_lib = b.addStaticLibrary(.{
+        .name = "ipc",
+        .optimize = optimize,
+        .target = target,
+        .root_source_file = b.path("./lib/ipc/src/main.zig")
+    });
+
+    // const ipc_module = b.dependency("ipc", .{}).module("ipc");
+    // ipc_module.linkSystemLibrary("ipc", .{ .needed = true });
+
     const ipcd_exe = b.addExecutable(.{
         .name = "ipcd",
         .root_source_file = .{ .path = "src/ipcd.zig" },
         .target = target,
         .optimize = optimize,
     });
-    link_and_install(ipcd_exe);
-
-    const tcpd_exe = b.addExecutable(.{
-        .name = "tcpd",
-        .root_source_file = .{ .path = "src/tcpd.zig" },
-        .target = target,
-        .optimize = optimize,
-    });
-    link_and_install(tcpd_exe);
-
-    const pong_exe = b.addExecutable(.{
-        .name = "pong",
-        .root_source_file = .{ .path = "src/pong.zig" },
-        .target = target,
-        .optimize = optimize,
-    });
-    link_and_install(pong_exe);
-
-    const pongd_exe = b.addExecutable(.{
-        .name = "pongd",
-        .root_source_file = .{ .path = "src/pongd.zig" },
-        .target = target,
-        .optimize = optimize,
-    });
-    link_and_install(pongd_exe);
+    ipcd_exe.linkLibrary(ipc_static_lib);
+    b.installArtifact(ipc_static_lib);
+    ipcd_exe.linkSystemLibrary("ipc");
+    ipcd_exe.linkLibC();
+    b.installArtifact(ipcd_exe);
+//
+//    const tcpd_exe = b.addExecutable(.{
+//        .name = "tcpd",
+//        .root_source_file = .{ .path = "src/tcpd.zig" },
+//        .target = target,
+//        .optimize = optimize,
+//    });
+//    // tcpd_exe.addModule("ipc", module.CreateOptions);
+//    tcpd_exe.linkLibC();
+//    b.installArtifact(tcpd_exe);
+//
+//    const pong_exe = b.addExecutable(.{
+//        .name = "pong",
+//        .root_source_file = .{ .path = "src/pong.zig" },
+//        .target = target,
+//        .optimize = optimize,
+//    });
+//    // pong_exe.addModule("ipc", module.CreateOptions);
+//    pong_exe.linkLibC();
+//    b.installArtifact(pong_exe);
+//
+//    const pongd_exe = b.addExecutable(.{
+//        .name = "pongd",
+//        .root_source_file = .{ .path = "src/pongd.zig" },
+//        .target = target,
+//        .optimize = optimize,
+//    });
+//    // pongd_exe.addModule("ipc", module.CreateOptions);
+//    pongd_exe.linkLibC();
+//    b.installArtifact(pongd_exe);
 
     const is_static = b.option(bool, "static", "Compile static binaries.") orelse false;
     if (is_static) {
         ipcd_exe.linkage = .static;
-        tcpd_exe.linkage = .static;
-        pong_exe.linkage = .static;
-        pongd_exe.linkage = .static;
+//        tcpd_exe.linkage = .static;
+//        pong_exe.linkage = .static;
+//        pongd_exe.linkage = .static;
     }
 }
diff --git a/zig/lib/ipc b/zig/lib/ipc
deleted file mode 160000
index 64506bb..0000000
--- a/zig/lib/ipc
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 64506bbee0d691b3a0c6d5d97894426c188bc3df
diff --git a/zig/lib/ipc b/zig/lib/ipc
new file mode 120000
index 0000000..946580a
--- /dev/null
+++ b/zig/lib/ipc
@@ -0,0 +1 @@
+/tmp/prog/libipc
\ No newline at end of file