diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index 95c40ba..0000000
--- a/.gitignore
+++ /dev/null
@@ -1,30 +0,0 @@
-# Object files
-*.o
-*.ko
-*.obj
-*.elf
-
-# Libraries
-*.lib
-*.a
-
-# Shared objects (inc. Windows DLLs)
-*.dll
-*.so
-*.so.*
-*.dylib
-
-# Executables
-*.exe
-*.out
-*.app
-*.i*86
-*.x86_64
-*.hex
-/spt
-
-# vim
-*.swp
-*~
-
-config.h
diff --git a/LICENSE b/LICENSE
deleted file mode 100644
index 4921131..0000000
--- a/LICENSE
+++ /dev/null
@@ -1,13 +0,0 @@
-Copyright (c) 2015-2020, Ivan Tham <pickfire@riseup.net>
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/Makefile b/Makefile
deleted file mode 100644
index 05e4894..0000000
--- a/Makefile
+++ /dev/null
@@ -1,59 +0,0 @@
-# spt - simple pomodoro timer
-# See LICENSE file for copyright and license details.
-
-include config.mk
-
-SRC = spt.c
-OBJ = ${SRC:.c=.o}
-
-all: options spt
-
-options:
-	@echo spt build options:
-	@echo "CFLAGS  = ${CFLAGS}"
-	@echo "LDFLAGS = ${LDFLAGS}"
-	@echo "CC      = ${CC}"
-
-.c.o:
-	@echo CC $<
-	@${CC} -c ${CFLAGS} $<
-
-${OBJ}: config.h config.mk
-
-config.h:
-	@echo creating $@ from config.def.h
-	@cp config.def.h $@
-
-spt: ${OBJ}
-	@echo CC -o $@
-	@${CC} -o $@ ${OBJ} ${LDFLAGS}
-
-clean:
-	@echo cleaning
-	@rm -f ${SRC:.c=} ${OBJ} spt-${VERSION}.tar.xz
-
-dist: clean
-	@echo creating dist tarball
-	@mkdir -p spt-${VERSION}
-	@cp -R LICENSE Makefile README config.mk config.def.h spt.info spt.1 ${SRC} spt-${VERSION}
-	@tar -cf spt-${VERSION}.tar spt-${VERSION}
-	@xz spt-${VERSION}.tar
-	@rm -rf spt-${VERSION}
-
-install: all
-	@echo installing executable file to ${DESTDIR}${PREFIX}/bin
-	@mkdir -p ${DESTDIR}${PREFIX}/bin
-	@cp -f spt ${DESTDIR}${PREFIX}/bin
-	@chmod 755 ${DESTDIR}${PREFIX}/bin/spt
-	@echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
-	@mkdir -p ${DESTDIR}${MANPREFIX}/man1
-	@sed "s/VERSION/${VERSION}/g" < spt.1 > ${DESTDIR}${MANPREFIX}/man1/spt.1
-	@chmod 644 ${DESTDIR}${MANPREFIX}/man1/spt.1
-
-uninstall:
-	@echo removing executable file from ${DESTDIR}${PREFIX}/bin
-	@rm -f ${DESTDIR}${PREFIX}/bin/spt
-	@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
-	@rm -f ${DESTDIR}${MANPREFIX}/man1/spt.1
-
-.PHONY: all options clean dist install uninstall
diff --git a/README.md b/README.md
deleted file mode 100644
index 748dacc..0000000
--- a/README.md
+++ /dev/null
@@ -1,36 +0,0 @@
-spt - simple pomodoro timer
-===========================
-spt is a simple timer that uses the pomodoro technique that doubles your
-efficiency.
-
-Features
---------
-- Get the jobs done quicker than ever
-- Keeps you free like a dog
-- Able to show remaining time
-
-Installation
-------------
-Edit config.mk to match your local setup (spt is installed into the /usr/local
-namespace by default).
-
-Afterwards enter the following command to build and install spt (if necessary
-as root):
-
-    make clean install
-
-See the man pages for additional details.
-
-Configuration
--------------
-The configuration of spt is done by creating a custom config.h and
-(re)compiling the source code. By default, the timer runs by 4
-pomodoro timer (25 mins) with subsequent rests in between (5 mins)
-followed by a long rest (15 mins) in an infinite loop.
-
-Links
------
-http://pomodorotechnique.com/
-
-
-The project is licensed under the MIT license.
diff --git a/TODO b/TODO
deleted file mode 100644
index 062586c..0000000
--- a/TODO
+++ /dev/null
@@ -1 +0,0 @@
-Good luck! Nothing TODO for now.
diff --git a/arg.h b/arg.h
deleted file mode 100644
index 3b0d22f..0000000
--- a/arg.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copy me if you can.
- * by 20h
- */
-
-#ifndef __ARG_H__
-#define __ARG_H__
-
-extern char *argv0;
-
-#define USED(x) ((void)(x))
-
-#define ARGBEGIN	for (argv0 = *argv, argv++, argc--;\
-					argv[0] && argv[0][1]\
-					&& argv[0][0] == '-';\
-					argc--, argv++) {\
-				char _argc;\
-				char **_argv;\
-				if (argv[0][1] == '-' && argv[0][2] == '\0') {\
-					argv++;\
-					argc--;\
-					break;\
-				}\
-				for (argv[0]++, _argv = argv; argv[0][0];\
-						argv[0]++) {\
-					if (_argv != argv)\
-						break;\
-					_argc = argv[0][0];\
-					switch (_argc)
-
-#define ARGEND			}\
-				USED(_argc);\
-			}\
-			USED(argv);\
-			USED(argc);
-
-#define EARGF(x)	((argv[1] == NULL)? ((x), abort(), (char *)0) :\
-			(argc--, argv++, argv[0]))
-
-#endif
diff --git a/config.def.h b/config.def.h
deleted file mode 100644
index 44ce680..0000000
--- a/config.def.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* See LICENSE file for copyright and license details. */
-
-/* Notification, remove DNOTIFY in config.mk if you don't want it */
-static char *notifycmd = ""; /* Uses given command if not compiled by DNOTIFY */
-static char *notifyext = ""; /* Notify with extra command (eg. play an alarm) */
-
-/*
- * This is the array which defines all the timer that will be used.
- * It will be repeated after all of it is executed.
- */
-static Timers timers[] = {
-	/* timer(s)  comment */
-	{     1500,  "Time to start working!"},
-	{      300,  "Time to start resting!"},
-	{     1500,  "Time to start working!"},
-	{      300,  "Time to start resting!"},
-	{     1500,  "Time to start working!"},
-	{      300,  "Time to start resting!"},
-	{     1500,  "Time to start working!"},
-	{      900,  "Time to take a nap!"   },
-};
diff --git a/config.h b/config.h
new file mode 100644
index 0000000..7f2e0ba
--- /dev/null
+++ b/config.h
@@ -0,0 +1,26 @@
+typedef enum {
+	start_work,
+	start_small_break,
+	start_long_break
+} pomodoro_period;
+
+static char *notify_start_work = "";
+static char *notify_start_small_break = "";
+static char *notify_start_long_break = "";
+
+typedef struct {
+	unsigned int tmr;
+	pomodoro_period p;
+} Timers;
+
+static Timers timers[] = {
+	/* timer(s)  comment */
+	{     1500,  start_work},
+	{      300,  start_small_break},
+	{     1500,  start_work},
+	{      300,  start_small_break},
+	{     1500,  start_work},
+	{      300,  start_small_break},
+	{     1500,  start_work},
+	{      900,  start_long_break},
+};
diff --git a/config.mk b/config.mk
deleted file mode 100644
index 8c9d6d5..0000000
--- a/config.mk
+++ /dev/null
@@ -1,24 +0,0 @@
-# spt version
-VERSION = 0.6
-
-# Customize below to fit your system
-
-# paths
-PREFIX = /usr/local
-MANPREFIX = ${PREFIX}/share/man
-
-INCS = -I. -I/usr/include
-LIBS = -L/usr/lib
-
-# libnotify, comment if you don't want it
-DEFS = -DNOTIFY
-INCS+= `pkg-config --cflags libnotify`
-LIBS+= `pkg-config --libs libnotify`
-
-# flags
-CPPFLAGS += -DVERSION=\"${VERSION}\" -D_POSIX_C_SOURCE=199309
-CFLAGS += -g -std=c99 -pedantic -Wall -Os ${INCS} ${DEFS} ${CPPFLAGS}
-LDFLAGS += -g ${LIBS}
-
-# compiler and linker
-CC ?= cc
diff --git a/contrib/notify-macos b/contrib/notify-macos
deleted file mode 100755
index f424309..0000000
--- a/contrib/notify-macos
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/sh
-# A notification wrapper for MacOS. It will appear in Notification
-# Center as owned by Script Editor.
-#
-# usage: spt -n ./notify-macos
-osascript -e "display notification \"$2\" with title \"$1\""
diff --git a/spt.1 b/spt.1
deleted file mode 100644
index d45ef26..0000000
--- a/spt.1
+++ /dev/null
@@ -1,51 +0,0 @@
-.TH SPT 1 spt\-VERSION
-.SH NAME
-spt \- simple pomodoro timer
-.SH SYNOPSIS
-.B spt
-.RB [ \-e
-.IR notifyext ]
-.RB [ \-n
-.IR notifycmd ]
-.RB [ \-v ]
-.SH DESCRIPTION
-.B spt
-is a simple timer that uses pomodoro technique with desktop notification to
-double your efficiency.
-.B spt
-receives 2 signals:
-.P
-.RS
-.B SIGUSR1
-\- show remaining time, state
-.br
-.B SIGUSR2
-\- play/pause the timer
-.RE
-.SH OPTIONS
-.TP
-.BI \-e " notifyext"
-Execute
-.I notifyext
-when timer starts ticking.
-.TP
-.BI \-n " notifycmd"
-Execute
-.I notifycmd
-if not compiled with
-.IR "-DNOTIFY".
-.TP
-.BI \-v
-Prints version information to stderr, then exits.
-.SH TIMER
-4 pomodoro timer (
-.B 25 min.
-) with subsequent rests in between (
-.B 5 min.
-) and followed by a long rest (
-.B 15 min.
-) in an infinite loop.
-.SH EXAMPLES
-Use system notify_send and play a music without libnotify:
-.IP
-spt -e 'aplay alarm.wav' -n 'notify-send'
diff --git a/spt.c b/spt.c
deleted file mode 100644
index aec2f42..0000000
--- a/spt.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/* See LICENSE file for copyright and license details. */
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <signal.h>
-#include <time.h>
-#ifdef NOTIFY
-#include <libnotify/notify.h>
-#endif /* NOTIFY */
-
-#include "arg.h"
-
-char *argv0;
-
-/* macros */
-#define LEN(a)  (sizeof(a) / sizeof(a[0]))
-
-
-typedef struct {
-	unsigned int tmr;
-	char *cmt;
-} Timers;
-
-#include "config.h"
-
-volatile static sig_atomic_t display, suspend;
-
-/* function declarations */
-static void die(const char *errstr, ...);
-static void spawn(char *argv[]);
-static void notify_send(char *cmt);
-static void display_state(int remaining, int suspend);
-static void toggle_display(int sigint);
-static void toggle_suspend(int sigint);
-static void usage(void);
-
-/* functions implementations */
-void
-die(const char *errstr, ...)
-{
-	va_list ap;
-
-	va_start(ap, errstr);
-	vfprintf(stderr, errstr, ap);
-	va_end(ap);
-	exit(1);
-}
-
-void
-spawn(char *argv[])
-{
-	if (fork() == 0) {
-		setsid();
-		execvp(argv[0], argv);
-		die("spt: execvp %s\n", argv[0]);
-		perror(" failed");
-		exit(0);
-	}
-}
-
-void
-notify_send(char *cmt)
-{
-	if (strcmp(notifycmd, ""))
-		spawn((char *[]) { notifycmd, "spt", cmt, NULL });
-#ifdef NOTIFY
-	else {
-		notify_init("spt");
-		NotifyNotification *n = notify_notification_new("spt", cmt, \
-					"dialog-information");
-		notify_notification_show(n, NULL);
-		g_object_unref(G_OBJECT(n));
-		notify_uninit();
-	}
-#endif /* NOTIFY */
-
-	if (strcmp(notifyext, "")) /* extra commands to use */
-		spawn((char *[]) { "/bin/sh", "-c", notifyext, NULL });
-}
-
-void
-display_state(int remaining, int suspend)
-{
-	char buf[29];
-
-	snprintf(buf, 29, "Remaining: %02d:%02d %s",
-		 remaining / 60,
-		 remaining % 60,
-		 (suspend) ? "◼" : "▶");
-
-	notify_send(buf);
-	display = 0;
-}
-
-void
-toggle_display(int sigint)
-{
-	display = 1;
-}
-
-void
-toggle_suspend(int sigint)
-{
-	suspend ^= 1;
-}
-
-void
-usage(void)
-{
-	die("usage: %s [-e notifyext] [-n notifycmd] [-v]\n", argv0);
-}
-
-int
-main(int argc, char *argv[])
-{
-	struct timespec remaining;
-	struct sigaction sa;
-	sigset_t emptymask;
-	int i;
-
-	ARGBEGIN {
-		case 'e':
-			notifyext = EARGF(usage());
-			break;
-		case 'n':
-			notifycmd = EARGF(usage());
-			break;
-		case 'v':
-			die("spt " VERSION " © 2015-2020 spt engineers, "
-			    "see LICENSE for details\n");
-		default:
-			usage();
-	} ARGEND;
-
-	/* add SIGUSR1 handler: remaining_time */
-	sa.sa_handler = toggle_display;
-	sigemptyset(&sa.sa_mask);
-	sa.sa_flags = 0;
-
-	if (sigaction(SIGUSR1, &sa, NULL) == -1)
-		die("cannot associate SIGUSR1 to handler\n");
-
-	/* add SIGUSR2 handler: toggle */
-	sa.sa_handler = toggle_suspend;
-	sigemptyset(&sa.sa_mask);
-	sa.sa_flags = 0;
-
-	if (sigaction(SIGUSR2, &sa, NULL) == -1)
-		die("cannot associate SIGUSR2 to handler\n");
-
-	sigemptyset(&emptymask);
-
-	for (i = 0; ; i = (i + 1) % LEN(timers)) {
-		notify_send(timers[i].cmt);
-		remaining.tv_sec = timers[i].tmr;
-		remaining.tv_nsec = 0;
-		while (remaining.tv_sec) {
-			if (display)
-				display_state(remaining.tv_sec, suspend);
-
-			if (suspend)
-				sigsuspend(&emptymask);
-			else
-				if (nanosleep(&remaining, &remaining) == 0)
-					remaining.tv_sec = remaining.tv_nsec = 0;
-		}
-	}
-
-	return 0;
-}