diff --git a/Makefile b/Makefile
index 0f3cf11..56af379 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,8 @@ PREFIX ?= /usr/local
 EXEC_PREFIX ?= $(PREFIX)
 BINDIR ?= $(EXEC_PREFIX)/bin
 LIBEXECDIR ?= $(EXEC_PREFIX)/libexec
+DATAROOTDIR ?= $(PREFIX)/share
+MANDIR ?= $(DATAROOTDIR)/man
 
 CFLAGS += -Os -g -Wall -Wextra -pedantic
 CPPFLAGS +=
@@ -13,6 +15,7 @@ SED ?= sed
 BINS := ethermess
 LIBEXECS := ethermess-backend
 TOOLS := ethertype-dump arp-request
+MAN1S := ethermess.1
 
 .SUFFIXES:
 .SUFFIXES: .c .o
@@ -40,11 +43,12 @@ ethermess-backend: ethermess-backend.o
 .c.o:
 	$(CC) -c $(CFLAGS) $(CPPFLAGS) -o $@ $<
 
-install: $(BINS) $(LIBEXECS)
+install: $(BINS) $(LIBEXECS) $(MANS)
 	mkdir -p $(DESTDIR)$(BINDIR)
 	mkdir -p $(DESTDIR)$(LIBEXECDIR)
 	install $(BINS) $(DESTDIR)$(BINDIR)
 	install $(LIBEXECS) $(DESTDIR)$(LIBEXECDIR)
+	cp $(MAN1S) $(DESTDIR)$(MANDIR)/man1
 	@echo
 	@echo '--------------------------------------------------------------------------------'
 	@echo 'To finish the installation, set the CAP_NET_RAW on $(LIBEXECDIR)/ethermess-backend with'
@@ -58,7 +62,8 @@ install: $(BINS) $(LIBEXECS)
 
 uninstall:
 	cd $(DESTDIR)$(BINDIR) && rm $(BINS)
-	cs $(DESTDIR)$(LIBEXECDIR) && rm $(LIBEXECS)
+	cd $(DESTDIR)$(LIBEXECDIR) && rm $(LIBEXECS)
+	cd $(DESTDIR)$(MANDIR)/man1 && rm $(MAN1S)
 
 clean:
 	rm -f $(BINS) $(LIBEXECS) $(TOOLS) *.o
diff --git a/ethermess.1 b/ethermess.1
new file mode 100644
index 0000000..134a1f9
--- /dev/null
+++ b/ethermess.1
@@ -0,0 +1,116 @@
+.Dd July 07, 2019
+.Dt ETHERMESS 1
+.Os
+.Sh NAME
+.Nm ethermess
+.Nd simple messenger over bare Ethernet
+.Sh SYNOPSIS
+.Nm
+.Ar interface
+.Ar nick
+.Sh DESCRIPTION
+.Nm
+allows sending and receiving messages over Ethernet or Wi-Fi networks using
+the EtherMess protocol.
+Since EtherMess protocol uses bare Ethernet frames as its transport, IP
+connectivity is not needed.
+.Pp
+The
+.Nm
+command requires two arguments:
+.Bl -tag -width Ds
+.It Ar interface
+Network interface to talk over.
+.It Ar nick
+The nick to use for yourself.
+.El
+.Pp
+.Nm
+uses a very bare-bones line-oriented user interface.
+.Pp
+Lines that start with
+.Sq /
+are considered commands.
+Lines that do not will be sent as messages to the default target.
+.Ss Commands
+.Bl -tag -width Ds
+.It / Ar message
+Send a message to the default target.
+This form is only really useful for sending a message that starts with
+.Sq / .
+.It /msg Ar target Ar message
+Send a message to the specified target.
+.It /status Op Ar target
+Display the status of either a target (if specified) or yourself (if not).
+.It /peers
+List all the peers that
+.Nm
+knows about.
+.It /available
+Set your status to available.
+.It /unavailable
+Set your status to unavailable
+.It /nick Op Ar nick
+Set your nick to the one specified or display the current one.
+.It /target Ar target
+Set the default target.
+.El
+.Ss Nick and Target
+The full form of a nick as used by
+.Nm
+is
+.Dq ~nick .
+Here the
+.Sq ~
+refers to the fact that it is set by the user and untrusted, and also helps
+to differentiate it from a MAC address.
+In most cases you can drop the
+.Sq ~
+without any effect.
+.Pp
+A target can be either a nick or a raw MAC address.
+.Ss Messages
+A message not from your default target will generally look like:
+.Bd -literal -compact
+    16:20:03 < ~hutenosa> Lorem ipsum.
+.Ed
+.Pp
+A message from your default target will instead look like:
+.Bd -literal -compact
+    16:20:03 <*~hutenosa> Lorem ipsum.
+.Ed
+.Ss Status
+There are four main types of status notification: join, quit, status
+change, and nick change.
+.Pp
+The maximal form of a join is
+.Bd -literal -compact
+    20:08:19 >>> ~nick (status) [b7:00:f0:9f:a4:94]
+.Ed
+If the status is available, the
+.Dq (status)
+part will not be present.
+.Pp
+A normal quit looks like
+.Bd -literal -compact
+    18:09:22 <<< ~nick [b7:00:f0:9f:8d:86]
+.Ed
+And one due to a timeout looks like
+.Bd -literal -compact
+    18:14:23 <<< (timeout) ~nick [b7:00:f0:9f:8d:86]
+.Ed
+.Pp
+A status change looks like
+.Bd -literal -compact
+    19:06:49 === ~nick (status) [b7:00:f0:9f:8d:91]
+.Ed
+.Pp
+A nick change looks like
+.Bd -literal -compact
+    03:00:40 === ~oldnick -> ~newnick [b7:00:f0:9f:98:85]
+.Ed
+.Sh EXIT STATUS
+.Nm
+exit with status code 0 if it is exiting on user command and 1 if it is exiting due to backend having quit.
+.Sh SEE ALSO
+.Xr ethermess 7