diff --git a/time.go b/again.go
similarity index 99%
rename from time.go
rename to again.go
index 1e38f20..be1186a 100644
--- a/time.go
+++ b/again.go
@@ -1,10 +1,14 @@
-package main
+package again
 
 import (
 	"fmt"
 	"time"
 )
 
+type Schedule struct {
+	NextRunAt time.Time
+}
+
 // https://yourbasic.org/golang/time-change-convert-location-timezone/
 // https://sebest.github.io/post/create-a-small-docker-image-for-a-golang-binary/
 // https://github.com/FKSE/docker-golang-base
@@ -12,7 +16,7 @@ import (
 // git clone https://github.com/eggert/tz
 // grep '^Rule' -r tz/ | cut -f8-10 | egrep -iv 'Rule|SAVE'
 // egrep '\s0:30' -r tz/
-func main() {
+func Run() {
 	// blacklist "", "Local"
 	// UTC to TZ should always be correct
 	// TZ to UTC may not be correct
diff --git a/cmd/again/again b/cmd/again/again
new file mode 100755
index 0000000..7b335b3
Binary files /dev/null and b/cmd/again/again differ
diff --git a/cmd/again/again.go b/cmd/again/again.go
new file mode 100644
index 0000000..245f9e0
--- /dev/null
+++ b/cmd/again/again.go
@@ -0,0 +1,55 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"strconv"
+	"time"
+
+	"git.rootprojects.org/root/go-again/data/jsondb"
+)
+
+func main() {
+	portEnv := os.Getenv("PORT")
+
+	portInt := flag.Int("port", 0, "port on which to serve http")
+	addr := flag.String("addr", "", "address on which to serve http")
+	flag.Parse()
+
+	if "" != portEnv {
+		if 0 != *portInt {
+			log.Fatal("You may set PORT or --port, but not both.")
+			return
+		}
+		n, err := strconv.Atoi(portEnv)
+		if nil != err {
+			log.Fatalf("Could not parse PORT=%q.", n)
+			return
+		}
+		*portInt = n
+	}
+	if *portInt < 1024 || *portInt > 65535 {
+		log.Fatalf("port should be between 1024 and 65535, not %d.", *portInt)
+		return
+	}
+	portEnv = strconv.Itoa(*portInt)
+
+	server := &http.Server{
+		Addr:           fmt.Sprintf("%s:%s", *addr, portEnv),
+		Handler:        http.HandlerFunc(handleFunc),
+		ReadTimeout:    10 * time.Second,
+		WriteTimeout:   10 * time.Second,
+		MaxHeaderBytes: 1 << 20,
+	}
+
+	fmt.Println("Listening on", server.Addr)
+	log.Fatal(server.ListenAndServe())
+}
+
+func handleFunc(w http.ResponseWriter, r *http.Request) {
+	jsondb.List()
+	w.Write([]byte("Hello, World!"))
+}
diff --git a/data/jsondb/jsondb.go b/data/jsondb/jsondb.go
new file mode 100644
index 0000000..2eebe81
--- /dev/null
+++ b/data/jsondb/jsondb.go
@@ -0,0 +1,11 @@
+package jsondb
+
+import (
+	"errors"
+
+	again "git.rootprojects.org/root/go-again"
+)
+
+func List() ([]again.Schedule, error) {
+	return nil, errors.New("Not Implemented")
+}
diff --git a/examples/awkward.go b/examples/awkward.go
new file mode 100755
index 0000000..138db0c
--- /dev/null
+++ b/examples/awkward.go
@@ -0,0 +1,38 @@
+//#!/usr/bin/env go run
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+func main() {
+	fmt.Printf("%%s\n")
+	fmt.Println(time.Parse(time.RFC3339, "2019-06-21T00:01:09-06:00"))
+	fmt.Println(time.Parse(time.RFC3339, "2019-06-21T00:01:09+06:00"))
+	fmt.Println(time.Parse(time.RFC3339, "2019-06-21T00:01:09Z"))
+	fmt.Println(time.Parse(time.RFC3339, "2019-06-21T00:01:09Z-06:00"))
+	fmt.Println(time.Parse(time.RFC3339, "2019-06-21T00:01:09Z+06:00"))
+	fmt.Println(time.Date(2020, time.November, 31, 25, 60, 0, 0, time.UTC))
+	fmt.Println(time.Date(2016, time.December, 31, 23, 59, 59, 0, time.UTC))
+
+	var loc *time.Location
+	loc, _ = time.LoadLocation("America/Denver")
+	t := time.Date(2019, time.March, 10, 1, 30, 0, 0, loc)
+	fmt.Println(t, "==", t.UTC())
+	// 2019-03-10 01:30:00 -0700 MST == 2019-03-10 08:30:00 +0000 UTC
+	t = t.Add(time.Duration(1) * time.Hour)
+	fmt.Println(t, "==", t.UTC())
+	// 2019-03-10 03:30:00 -0600 MDT == 2019-03-10 09:30:00 +0000 UTC
+
+	loc, _ = time.LoadLocation("America/Denver")
+	t = time.Date(2019, time.November, 3, 1, 30, 0, 0, loc)
+	fmt.Println(t, "==", t.UTC())
+	// 2019-11-03 01:30:00 -0600 MDT == 2019-11-03 07:30:00 +0000 UTC
+	t = t.Add(time.Duration(1) * time.Hour)
+	fmt.Println(t, "==", t.UTC())
+	// 2019-11-03 01:30:00 -0700 MST == 2019-11-03 08:30:00 +0000 UTC
+	t = t.Add(time.Duration(1) * time.Hour)
+	fmt.Println(t, "==", t.UTC())
+	// 2019-11-03 02:30:00 -0700 MST == 2019-11-03 09:30:00 +0000 UTC
+}
diff --git a/rollover.go b/examples/rollover.go
similarity index 100%
rename from rollover.go
rename to examples/rollover.go
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..97231cb
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module git.rootprojects.org/root/go-again
+
+go 1.12