diff --git a/cmd/add.go b/cmd/add.go
new file mode 100644
index 0000000..04745b1
--- /dev/null
+++ b/cmd/add.go
@@ -0,0 +1,40 @@
+package main
+
+import (
+	"io/ioutil"
+	"os"
+
+	"github.com/google/uuid"
+	"gogs.inhome.blapointe.com/bel/pttodo/pttodo"
+	"gopkg.in/yaml.v2"
+)
+
+func add(config *config) error {
+	if config.add == "" {
+		return nil
+	}
+	v := pttodo.Todo{
+		Todo:     config.add,
+		Schedule: pttodo.Schedule(config.addSchedule),
+		Tags:     config.addTags,
+	}
+	newTarget, err := _add(config.targets, v)
+	if err != nil {
+		return err
+	}
+	config.targets = append(config.targets, newTarget)
+	return nil
+}
+
+func _add(filepaths []string, todo pttodo.Todo) (string, error) {
+	target := filepaths[0] + ".todo." + uuid.New().String()
+
+	c, err := yaml.Marshal([]pttodo.Todo{todo})
+	if err != nil {
+		return "", err
+	} else if err := ioutil.WriteFile(target, c, os.ModePerm); err != nil {
+		return "", err
+	}
+
+	return target, nil
+}
diff --git a/cmd/config.go b/cmd/config.go
new file mode 100644
index 0000000..b9d629a
--- /dev/null
+++ b/cmd/config.go
@@ -0,0 +1,47 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+)
+
+type config struct {
+	targets     []string
+	root        string
+	tags        []string
+	search      string
+	edit        bool
+	add         string
+	addSchedule string
+	addTags     string
+}
+
+func getConfig() config {
+	defaultFilepath := os.Getenv("PTTODO_FILE")
+	if defaultFilepath == "" {
+		defaultFilepath = "./todo.yaml"
+	}
+
+	var config config
+	var target string
+	flag.StringVar(&target, "f", defaultFilepath, "($PTTODO_FILE) path to yaml file or dir (starting with root then alphabetical for dir)")
+	flag.StringVar(&config.root, "root", DUMP_TODO, "path to pretty print ("+fmt.Sprint([]string{DUMP_ALL, DUMP_TODO, DUMP_SCHEDULED, DUMP_DONE})+")")
+	var tagss string
+	flag.StringVar(&tagss, "tags", "", "csv of all tags to find, -x to invert")
+	flag.StringVar(&config.search, "search", "", "fts case insensitive")
+	flag.BoolVar(&config.edit, "e", false, "edit file")
+	flag.StringVar(&config.add, "add", "", "todo to add")
+	flag.StringVar(&config.addSchedule, "add-schedule", "", "todo to add schedule")
+	flag.StringVar(&config.addTags, "add-tags", "", "todo to add csv tags")
+	flag.Parse()
+
+	config.tags = strings.Split(tagss, ",")
+	config.targets = []string{target}
+	if stat, err := os.Stat(target); err == nil && stat.IsDir() {
+		config.targets, _ = listDir(target)
+	}
+
+	return config
+}
diff --git a/cmd/dump.go b/cmd/dump.go
new file mode 100644
index 0000000..f1e4f76
--- /dev/null
+++ b/cmd/dump.go
@@ -0,0 +1,106 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"os"
+	"strings"
+
+	"gogs.inhome.blapointe.com/bel/pttodo/pttodo"
+	"gopkg.in/yaml.v2"
+)
+
+func dump(config config) error {
+	return _dump(os.Stdout, config.targets, config.tags, config.search, config.root)
+}
+
+func _dump(writer io.Writer, filepaths []string, tags []string, search, rootDisplay string) error {
+	var root pttodo.Root
+
+	for _, filepath := range filepaths {
+		reader, err := filePathReader(filepath)
+		if err != nil {
+			return err
+		}
+
+		b, err := ioutil.ReadAll(reader)
+		if err != nil {
+			return err
+		}
+
+		var root2, root2post pttodo.Root
+		if err := yaml.Unmarshal(b, &root2); err != nil {
+			return err
+		}
+		if err := yaml.Unmarshal(b, &root2post); err != nil {
+			return err
+		}
+
+		root2.MoveScheduledToTodo()
+
+		if !root2.Equals(root2post) {
+			log.Printf("refreshing %s", filepath)
+			b3, err := yaml.Marshal(root2)
+			if err != nil {
+				return err
+			}
+			if err := os.WriteFile(filepath, b3, os.ModePerm); err != nil {
+				return err
+			}
+		} else {
+			//log.Printf("not refreshing %s", filepath)
+		}
+
+		root.MergeIn(root2)
+	}
+
+	root.MoveScheduledToTodo()
+
+	var v interface{} = root
+	switch rootDisplay {
+	case DUMP_ALL:
+	case DUMP_TODO:
+		v = root.Todo
+	case DUMP_SCHEDULED:
+		v = root.Scheduled
+	case DUMP_DONE:
+		v = root.Done
+	}
+	if todos, ok := v.([]pttodo.Todo); ok {
+		if len(tags) > 0 {
+			result := make([]pttodo.Todo, 0, len(todos))
+			for _, todo := range todos {
+				skip := false
+				for _, tag := range tags {
+					positiveTag := strings.TrimLeft(tag, "-")
+					hasTag := strings.Contains(todo.Tags, positiveTag)
+					wantToHaveTag := !strings.HasPrefix(tag, "-")
+					skip = skip || !(hasTag == wantToHaveTag)
+				}
+				if !skip {
+					result = append(result, todo)
+				}
+			}
+			todos = result
+		}
+		if len(search) > 0 {
+			result := make([]pttodo.Todo, 0, len(todos))
+			for _, todo := range todos {
+				if strings.Contains(strings.ToLower(fmt.Sprint(todo)), strings.ToLower(search)) {
+					result = append(result, todo)
+				}
+			}
+			todos = result
+		}
+		v = todos
+	}
+
+	b2, err := yaml.Marshal(v)
+	if err != nil {
+		return err
+	}
+	fmt.Fprintf(writer, "%s\n", b2)
+	return nil
+}
diff --git a/cmd/edit.go b/cmd/edit.go
new file mode 100644
index 0000000..71f30d3
--- /dev/null
+++ b/cmd/edit.go
@@ -0,0 +1,161 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"os/exec"
+	"path"
+	"syscall"
+	"time"
+
+	"github.com/google/uuid"
+	"gogs.inhome.blapointe.com/bel/pttodo/pttodo"
+	"gopkg.in/yaml.v2"
+)
+
+func edit(config config) error {
+	if !config.edit {
+		return nil
+	}
+	return _edit(config.targets)
+}
+
+func _edit(filepaths []string) error {
+	tempDir, err := ioutil.TempDir(os.TempDir(), "edit-pttodo-*")
+	if err != nil {
+		return err
+	}
+	originals := map[string]pttodo.Root{}
+	lastModified := map[string]time.Time{}
+	for _, target := range filepaths {
+		var original pttodo.Root
+		if r, err := filePathReader(target); err != nil {
+			return err
+		} else if err := yaml.NewDecoder(r).Decode(&original); err != nil {
+			return err
+		} else if c, err := yaml.Marshal(original.Todo); err != nil {
+			return err
+		} else if err := ioutil.WriteFile(path.Join(tempDir, path.Base(target)), c, os.ModePerm); err != nil {
+			return err
+		}
+		originals[target] = original
+		if info, _ := os.Stat(target); info != nil {
+			lastModified[target] = info.ModTime()
+		} else {
+			lastModified[target] = time.Time{}
+		}
+	}
+	if err := vimd(tempDir); err != nil {
+		return err
+	}
+	for _, target := range filepaths {
+		for {
+			err := func() error {
+				var todos []pttodo.Todo
+				if r, err := filePathReader(path.Join(tempDir, path.Base(target))); err != nil {
+					return err
+				} else if err := yaml.NewDecoder(r).Decode(&todos); err != nil {
+					return err
+				}
+				return nil
+			}()
+			if err == nil {
+				break
+			}
+			log.Printf("%s, press <Enter> to resume editing", err)
+			b := make([]byte, 1)
+			if _, err := os.Stdin.Read(b); err != nil {
+				return err
+			}
+			if err := vimd(tempDir); err != nil {
+				return err
+			}
+		}
+	}
+	for _, target := range filepaths {
+		r, err := filePathReader(path.Join(tempDir, path.Base(target)))
+		if err != nil {
+			return err
+		}
+		var newTodos []pttodo.Todo
+		if err := yaml.NewDecoder(r).Decode(&newTodos); err != nil {
+			return err
+		}
+		original := originals[target]
+
+		newTodoIDs := map[string]struct{}{}
+		for i := range newTodos {
+			newTodoIDs[newTodos[i].ID()] = struct{}{}
+		}
+
+		for i := range original.Todo {
+			if _, ok := newTodoIDs[original.Todo[i].ID()]; !ok {
+				original.Todo[i].TS = pttodo.TS(time.Now().Unix())
+				if string(original.Todo[i].Schedule) != "" && !original.Todo[i].Triggered() {
+					original.Scheduled = append(original.Scheduled, original.Todo[i])
+				}
+				original.Done = append(original.Done, original.Todo[i])
+			}
+		}
+		original.Todo = newTodos
+
+		original.AutoMove()
+
+		c, err := yaml.Marshal(original)
+		if err != nil {
+			return err
+		}
+		outputPath := target
+		if info, _ := os.Stat(target); info != nil && info.ModTime() != lastModified[target] {
+			outputPath = fmt.Sprintf("%s.%s.%s", outputPath, uuid.New().String(), path.Ext(outputPath))
+		}
+		if err := ioutil.WriteFile(outputPath, c, os.ModePerm); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func vimd(d string) error {
+	bin := "vim"
+	editorbin, err := exec.LookPath(bin)
+	if err != nil {
+		editorbin, err = exec.LookPath("vi")
+	}
+	if err != nil {
+		return err
+	}
+	args := []string{editorbin, "-p"}
+	files, err := listDir(d)
+	if err != nil {
+		return err
+	}
+	args = append(args, files...)
+	cpid, err := syscall.ForkExec(
+		editorbin,
+		args,
+		&syscall.ProcAttr{
+			Dir:   d,
+			Env:   os.Environ(),
+			Files: []uintptr{os.Stdin.Fd(), os.Stdout.Fd(), os.Stderr.Fd()},
+			Sys:   nil,
+		},
+	)
+	if err != nil {
+		return err
+	}
+	proc, err := os.FindProcess(cpid)
+	if err != nil {
+		return err
+	}
+	state, err := proc.Wait()
+	if err != nil {
+		return err
+	}
+	if exitCode := state.ExitCode(); exitCode != 0 {
+		return fmt.Errorf("bad exit code on vim: %d, state: %+v", exitCode, state)
+	}
+	return nil
+}
diff --git a/cmd/go.mod b/cmd/go.mod
new file mode 100644
index 0000000..bb93bf9
--- /dev/null
+++ b/cmd/go.mod
@@ -0,0 +1,15 @@
+module pttodo-cli
+
+go 1.17
+
+require (
+	gogs.inhome.blapointe.com/bel/pttodo v0.4.0
+	gopkg.in/yaml.v2 v2.4.0
+)
+
+require (
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/robfig/cron/v3 v3.0.1 // indirect
+)
+
+replace gogs.inhome.blapointe.com/bel/pttodo => ./..
diff --git a/cmd/go.sum b/cmd/go.sum
new file mode 100644
index 0000000..200a035
--- /dev/null
+++ b/cmd/go.sum
@@ -0,0 +1,8 @@
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/robfig/cron/v3 v3.0.1 h1:WdRxkvbJztn8LMz/QEvLN5sBU+xKpSqwwUO1Pjr4qDs=
+github.com/robfig/cron/v3 v3.0.1/go.mod h1:eQICP3HwyT7UooqI/z+Ov+PtYAWygg1TEWWzGIFLtro=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
diff --git a/cmd/install.sh b/cmd/install.sh
new file mode 100644
index 0000000..bdb4a97
--- /dev/null
+++ b/cmd/install.sh
@@ -0,0 +1,20 @@
+#! /bin/bash
+
+cd "$(dirname "$BASH_SOURCE")"
+
+binary_name="$(head -n 1 go.mod  | awk '{print $NF}' | sed 's/.*\///')"
+git_commit="$((
+   git rev-list -1 HEAD
+   if git diff | grep . > /dev/null; then
+      echo "-dirty"
+   fi
+) 2> /dev/null | tr -d '\n')"
+
+GOFLAGS="" \
+GO111MODULE="" \
+CGO_ENABLED=0 \
+go build \
+   -o $GOPATH/bin/$binary_name \
+   -a \
+   -installsuffix cgo \
+   -ldflags "-s -w -X main.GitCommit=$git_commit"
diff --git a/cmd/main.go b/cmd/main.go
new file mode 100644
index 0000000..aeb25c6
--- /dev/null
+++ b/cmd/main.go
@@ -0,0 +1,129 @@
+package main
+
+import (
+	"bytes"
+	"io"
+	"io/ioutil"
+	"os"
+	"path"
+	"sort"
+	"strings"
+
+	"gogs.inhome.blapointe.com/bel/pttodo/pttodo"
+
+	"gopkg.in/yaml.v2"
+)
+
+const (
+	DUMP_ALL       = "all"
+	DUMP_TODO      = "todo"
+	DUMP_SCHEDULED = "scheduled"
+	DUMP_DONE      = "done"
+)
+
+func main() {
+	if err := _main(); err != nil {
+		panic(err)
+	}
+}
+
+func _main() error {
+	config := getConfig()
+	if err := add(&config); err != nil {
+		return err
+	}
+	if err := edit(config); err != nil {
+		return err
+	}
+	return dump(config)
+}
+
+func merge(filepath string, mergeTargetFilePath string) error {
+	baseReader, err := filePathReader(filepath)
+	if err != nil {
+		return err
+	}
+	baseB, err := ioutil.ReadAll(baseReader)
+	if err != nil {
+		return err
+	}
+
+	mergingReader, err := filePathReader(mergeTargetFilePath)
+	if err != nil {
+		return err
+	}
+	mergingB, err := ioutil.ReadAll(mergingReader)
+	if err != nil {
+		return err
+	}
+
+	var base, merging pttodo.Root
+	if err := yaml.Unmarshal(baseB, &base); err != nil {
+		return err
+	}
+	if err := yaml.Unmarshal(mergingB, &merging); err != nil {
+		return err
+	}
+
+	base.MergeIn(merging)
+
+	tmppath, err := marshalRootToTempFile(base)
+	if err != nil {
+		return err
+	}
+	return os.Rename(tmppath, filepath)
+}
+
+func marshalRootToTempFile(root pttodo.Root) (string, error) {
+	f, err := ioutil.TempFile(os.TempDir(), "tmp")
+	if err != nil {
+		return "", err
+	}
+	f.Close()
+	os.Remove(f.Name())
+	b, err := yaml.Marshal(root)
+	if err != nil {
+		return "", err
+	}
+	filepath := f.Name() + ".yaml"
+	err = ioutil.WriteFile(filepath, b, os.ModePerm)
+	return filepath, err
+}
+
+func filePathReader(path string) (io.Reader, error) {
+	if path == "-" {
+		return os.Stdin, nil
+	}
+	b, err := ioutil.ReadFile(path)
+	if os.IsNotExist(err) {
+		return bytes.NewReader([]byte("{}")), nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return bytes.NewReader(b), nil
+}
+
+func listDir(dname string) ([]string, error) {
+	entries, err := os.ReadDir(dname)
+	if err != nil {
+		return nil, err
+	}
+	paths := make([]string, 0, len(entries))
+	for i := range entries {
+		if entries[i].IsDir() {
+			continue
+		}
+		if strings.HasPrefix(path.Base(entries[i].Name()), ".") {
+			continue
+		}
+		paths = append(paths, path.Join(dname, entries[i].Name()))
+	}
+	sort.Slice(paths, func(i, j int) bool {
+		if path.Base(paths[i]) == "root.yaml" {
+			return true
+		}
+		return paths[i] < paths[j]
+	})
+	return paths, nil
+}
diff --git a/cmd/main_test.go b/cmd/main_test.go
new file mode 100644
index 0000000..d6a96c5
--- /dev/null
+++ b/cmd/main_test.go
@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"strconv"
+	"testing"
+)
+
+func TestListDir(t *testing.T) {
+	d := t.TempDir()
+	want := []string{}
+	for i := 0; i < 3; i++ {
+		p := path.Join(d, strconv.Itoa(i))
+		ioutil.WriteFile(p, []byte{}, os.ModePerm)
+		want = append(want, p)
+	}
+	os.Mkdir(path.Join(d, "d"), os.ModePerm)
+
+	got, err := listDir(d)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if fmt.Sprint(want) != fmt.Sprint(got) {
+		t.Fatal(want, got)
+	}
+}
diff --git a/cmd/testdata/1.yaml b/cmd/testdata/1.yaml
new file mode 100644
index 0000000..ca66683
--- /dev/null
+++ b/cmd/testdata/1.yaml
@@ -0,0 +1,4 @@
+todo:
+- "1"
+scheduled: []
+done: []
diff --git a/cmd/testdata/2.yaml b/cmd/testdata/2.yaml
new file mode 100644
index 0000000..2c974d6
--- /dev/null
+++ b/cmd/testdata/2.yaml
@@ -0,0 +1,4 @@
+todo:
+- "2"
+scheduled: []
+done: []
diff --git a/cmd/testdata/3.yaml b/cmd/testdata/3.yaml
new file mode 100644
index 0000000..10ac22b
--- /dev/null
+++ b/cmd/testdata/3.yaml
@@ -0,0 +1,4 @@
+todo:
+- "3"
+scheduled: []
+done: []
diff --git a/cmd/testdata/root.yaml b/cmd/testdata/root.yaml
new file mode 100644
index 0000000..fc779e6
--- /dev/null
+++ b/cmd/testdata/root.yaml
@@ -0,0 +1,4 @@
+todo:
+- root
+scheduled: []
+done: []
diff --git a/cmd/testdata/test.yaml b/cmd/testdata/test.yaml
new file mode 100755
index 0000000..657fa00
--- /dev/null
+++ b/cmd/testdata/test.yaml
@@ -0,0 +1,10 @@
+todo:
+- hi20890
+- hi
+- b
+- todo: loop
+  schedule: 10s
+- todo: past
+  schedule: "2000-01-02"
+scheduled: []
+done: []