First code step: build a basic TCP echo server.

.gitignore

@@ -0,0 +1,3 @@
+gache
+main
+go__cache

.idea/libraries/GOPATH__gache_.xml

@@ -1,22 +1,22 @@
 <component name="libraryTable">
   <library name="GOPATH &lt;gache&gt;">
     <CLASSES>
+      <root url="file://$PROJECT_DIR$/../../../launchpad.net" />
+      <root url="file://$PROJECT_DIR$/../../../golang.org" />
       <root url="file://$PROJECT_DIR$/../../../.idea" />
-      <root url="file://$PROJECT_DIR$/../.." />
-      <root url="file://$PROJECT_DIR$/../../../gopkg.in" />
       <root url="file://$PROJECT_DIR$/../../../github.com" />
-      <root url="file://$PROJECT_DIR$/../../../golang.org" />
-      <root url="file://$PROJECT_DIR$/../../../launchpad.net" />
+      <root url="file://$PROJECT_DIR$/../../../gopkg.in" />
+      <root url="file://$PROJECT_DIR$/../.." />
       <root url="file://$PROJECT_DIR$/../../../fgm" />
     </CLASSES>
     <JAVADOC />
     <SOURCES>
+      <root url="file://$PROJECT_DIR$/../../../launchpad.net" />
+      <root url="file://$PROJECT_DIR$/../../../golang.org" />
       <root url="file://$PROJECT_DIR$/../../../.idea" />
-      <root url="file://$PROJECT_DIR$/../.." />
-      <root url="file://$PROJECT_DIR$/../../../gopkg.in" />
       <root url="file://$PROJECT_DIR$/../../../github.com" />
-      <root url="file://$PROJECT_DIR$/../../../golang.org" />
-      <root url="file://$PROJECT_DIR$/../../../launchpad.net" />
+      <root url="file://$PROJECT_DIR$/../../../gopkg.in" />
+      <root url="file://$PROJECT_DIR$/../.." />
       <root url="file://$PROJECT_DIR$/../../../fgm" />
     </SOURCES>
     <excluded>

.idea/misc.xml

@@ -34,5 +34,5 @@
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     <ConfirmationsSetting value="0" id="Remove" />
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-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_6" default="false" assert-keyword="true" jdk-15="true" project-jdk-name="Go 1.7" project-jdk-type="Go SDK" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_6" default="false" assert-keyword="true" jdk-15="true" project-jdk-name="Go 1.8.3" project-jdk-type="Go SDK" />
 </project>

.idea/runConfigurations/go_run_main_go.xml

@@ -0,0 +1,8 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="go run main.go" type="GoRunFileConfiguration" factoryName="Go Single File" singleton="true">
+    <module name="gache" />
+    <working_directory value="$PROJECT_DIR$" />
+    <filePath value="$PROJECT_DIR$/main.go" />
+    <method />
+  </configuration>
+</component>

.idea/workspace.xml

@@ -2,8 +2,10 @@
 <project version="4">
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-      <change type="NEW" beforePath="" afterPath="$PROJECT_DIR$/docs/protocol.yml" />
+      <change type="NEW" beforePath="" afterPath="$PROJECT_DIR$/.idea/runConfigurations/go_run_main_go.xml" />
+      <change type="NEW" beforePath="" afterPath="$PROJECT_DIR$/main.go" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/libraries/GOPATH__gache_.xml" afterPath="$PROJECT_DIR$/.idea/libraries/GOPATH__gache_.xml" />
+      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/misc.xml" afterPath="$PROJECT_DIR$/.idea/misc.xml" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
     </list>
     <ignored path="gache.iws" />
@@ -24,16 +26,26 @@
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file leaf-file-name="protocol.yml" pinned="false" current-in-tab="true">
+      <file leaf-file-name="protocol.yml" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/docs/protocol.yml">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="557">
+            <state relative-caret-position="655">
               <caret line="159" column="55" selection-start-line="159" selection-start-column="55" selection-end-line="159" selection-end-column="55" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
+      <file leaf-file-name="main.go" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/main.go">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="405">
+              <caret line="28" column="47" selection-start-line="28" selection-start-column="47" selection-end-line="28" selection-end-column="47" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
     </leaf>
   </component>
   <component name="FileTemplateManagerImpl">
@@ -64,13 +76,14 @@
         <option value="$PROJECT_DIR$/docs/README.md" />
         <option value="$PROJECT_DIR$/docs/runner_config.md" />
         <option value="$PROJECT_DIR$/docs/protocol.yml" />
+        <option value="$PROJECT_DIR$/main.go" />
       </list>
     </option>
   </component>
   <component name="ProjectFrameBounds">
     <option name="y" value="23" />
-    <option name="width" value="1436" />
-    <option name="height" value="877" />
+    <option name="width" value="1676" />
+    <option name="height" value="1027" />
   </component>
   <component name="ProjectInspectionProfilesVisibleTreeState">
     <entry key="Project Default">
@@ -126,7 +139,9 @@
     </navigator>
     <panes>
       <pane id="Scratches" />
-      <pane id="PackagesPane" />
+      <pane id="AndroidView">
+        <subPane />
+      </pane>
       <pane id="ProjectPane">
         <subPane>
           <PATH>
@@ -161,9 +176,7 @@
           </PATH>
         </subPane>
       </pane>
-      <pane id="AndroidView">
-        <subPane />
-      </pane>
+      <pane id="PackagesPane" />
       <pane id="Scope">
         <subPane subId="Project Files">
           <PATH>
@@ -208,13 +221,7 @@
       <recent name="$PROJECT_DIR$/docs" />
     </key>
   </component>
-  <component name="RunManager" selected="Go Single File.go run hello.go">
-    <configuration default="false" name="go run hello.go" type="GoRunFileConfiguration" factoryName="Go Single File" temporary="true">
-      <module name="gache" />
-      <working_directory value="$PROJECT_DIR$" />
-      <filePath value="$PROJECT_DIR$/hello.go" />
-      <method />
-    </configuration>
+  <component name="RunManager" selected="Go Single File.go run main.go">
     <configuration default="true" type="AndroidJUnit" factoryName="Android JUnit">
       <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
       <module name="" />
@@ -515,13 +522,8 @@
       <method />
     </configuration>
     <list size="1">
-      <item index="0" class="java.lang.String" itemvalue="Go Single File.go run hello.go" />
+      <item index="0" class="java.lang.String" itemvalue="Go Single File.go run main.go" />
     </list>
-    <recent_temporary>
-      <list size="1">
-        <item index="0" class="java.lang.String" itemvalue="Go Single File.go run hello.go" />
-      </list>
-    </recent_temporary>
     <configuration name="&lt;template&gt;" type="Applet" default="true" selected="false">
       <option name="MAIN_CLASS_NAME" />
       <option name="HTML_FILE_NAME" />
@@ -560,19 +562,19 @@
     <servers />
   </component>
   <component name="ToolWindowManager">
-    <frame x="0" y="23" width="1436" height="877" extended-state="6" />
+    <frame x="0" y="23" width="1676" height="1027" extended-state="6" />
     <editor active="true" />
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+      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.32832617" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
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+      <window_info id="Project" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.2702864" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
+      <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.13902149" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
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@@ -610,6 +612,14 @@
     <watches-manager />
   </component>
   <component name="editorHistoryManager">
+    <entry file="file://$PROJECT_DIR$/docs/protocol.yml">
+      <provider selected="true" editor-type-id="text-editor">
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     <entry file="file://$PROJECT_DIR$/docs/protocol.yml">
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@@ -763,12 +773,20 @@
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     <entry file="file://$PROJECT_DIR$/docs/protocol.yml">
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+    <entry file="file://$PROJECT_DIR$/main.go">
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+        </state>
+      </provider>
+    </entry>
   </component>
   <component name="masterDetails">
     <states>

main.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"net"
+	"fmt"
+	"io"
+	"log"
+	"strconv"
+	"github.com/davecgh/go-spew/spew"
+)
+
+// Listen on all interfaces by default.
+const DEFAULT_HOST = "";
+const DEFAULT_PORT = 11211;
+
+func serve(connection net.Conn) {
+	fmt.Printf("Handling connection on %s from %s\n", connection.LocalAddr(), connection.RemoteAddr())
+	fmt.Fprintln(connection, "Welcome to the echo server!")
+	io.Copy(connection, connection)
+}
+
+func main() {
+	sock, err := net.Listen("tcp", DEFAULT_HOST + ":" + strconv.Itoa(DEFAULT_PORT))
+	if err != nil {
+		log.Fatal(err)
+	}
+	addr := sock.Addr()
+	spew.Dump(addr)
+	fmt.Printf("Beginning to listen on %s\n", addr)
+	for {
+		conn, err := sock.Accept()
+		if err != nil {
+			log.Fatal(err)
+		}
+		go serve(conn)
+	}
+}