diff --git a/makefile b/makefile
index 80825eb..255168a 100644
--- a/makefile
+++ b/makefile
@@ -3,88 +3,9 @@ all: build-server
 Q ?= @
 OPTS ?= --progress
 
-NAME ?= John
-EMAIL ?= john@example.com
-
-# For requests where authentication is required.
-LOGIN ?=
-ifeq ($(LOGIN),)
-LOGIN_OPT =
-else
-LOGIN_OPT = -l $(LOGIN)
-endif
-
-SOURCE_FILES = $(wildcard src/*.cr src/*/*.cr src/*/*/*.cr)
-
-##################
-### SETUP COMMANDS
-##################
-
-PASSWORD_FILE  ?= /tmp/PASSWORD
-setup:
-	@[ -f $(PASSWORD_FILE) ] || echo -n "coucou" > $(PASSWORD_FILE)
-
-DATA_DIRECTORY ?= /tmp/DATA-AUTHD
-run-authd:
-	./bin/authd -R -E --storage $(DATA_DIRECTORY)
-
-test-authd: setup
-	./bin/authd -k $(PASSWORD_FILE) -R -E --storage $(DATA_DIRECTORY)
-
-# First user always is the admin.
-add-first-user:
-	./bin/authc bootstrap $(NAME) $(EMAIL)
-
-
-####################
-### REQUEST EXAMPLES
-####################
-
-ACTIVATION_KEY ?= put-your-key-here
-add-user:; $(Q)./bin/authc user add $(NAME) $(EMAIL) $(LOGIN_OPT)
-register:; $(Q)./bin/authc user register $(NAME) $(EMAIL)
-validate:; $(Q)./bin/authc user validate $(NAME) $(ACTIVATION_KEY)
-get-user:; $(Q)./bin/authc user get $(NAME) $(LOGIN_OPT)
-
-SERVICE    ?= 'auth'
-RESOURCE   ?= '*'
-UID        ?= 1000
-PERMISSION ?= Read
-permission-check:; ./bin/authc permission check $(UID) $(SERVICE) $(RESOURCE) $(LOGIN_OPT)
-permission-set:;   ./bin/authc permission set $(UID) $(SERVICE) $(RESOURCE) $(PERMISSION) $(LOGIN_OPT)
-
-
-###################
-### DEVELOPER TOOLS
-###################
-
-bin/authd: $(SOURCE_FILES); $(Q)shards build authd $(OPTS)
-bin/authc: $(SOURCE_FILES); $(Q)shards build authc $(OPTS)
-build-server: bin/authd
-build-client: bin/authc
-build: build-server build-client
-
-doc:
-	crystal docs
-
-HTTPD_ACCESS_LOGS ?= /tmp/access-authd-docs.log
-HTTPD_ADDR        ?= 127.0.0.1
-HTTPD_PORT        ?= 9000
-DIR               ?= docs
-serve-doc:
-	darkhttpd $(DIR) --addr $(HTTPD_ADDR) --port $(HTTPD_PORT) --log $(HTTPD_ACCESS_LOGS)
-
-print-messages:;                      cat src/requests/*.cr | ./bin/get-messages.awk
-print-message-numbers:;               make -s print-messages | grep -E "^[0-9]" | sort -n
-print-messages-no-comments:;          make -s print-messages | grep -vE '^[[:blank:]]+#'
-print-response-messages:;             cat src/responses/*.cr | ./bin/get-messages.awk
-print-response-message-numbers:;      make -s print-response-messages | grep -E "^[0-9]" | sort -n
-print-response-messages-no-comments:; make -s print-response-messages | grep -vE '^[[:blank:]]+#'
-
-wipe-db:
-	rm -r $(DATA_DIRECTORY)
-
-release:
-	make build-server OPTS="--progress --release"
-
--include migration.mk
+include mk/build.mk
+include mk/install.mk
+include mk/setup.mk
+include mk/commands.mk
+-include mk/migration.mk
+-include mk/dev.mk
diff --git a/mk/build.mk b/mk/build.mk
new file mode 100644
index 0000000..524aeb0
--- /dev/null
+++ b/mk/build.mk
@@ -0,0 +1,10 @@
+SOURCE_FILES = $(wildcard src/*.cr src/*/*.cr src/*/*/*.cr)
+CRFLAGS  ?= --progress
+
+bin/authd: $(SOURCE_FILES); $(Q)shards build authd $(CRFLAGS)
+bin/authc: $(SOURCE_FILES); $(Q)shards build authc $(CRFLAGS)
+build-server: bin/authd
+build-client: bin/authc
+build: build-server build-client
+
+release:; make build-server CRFLAGS="--progress --release"
diff --git a/mk/commands.mk b/mk/commands.mk
new file mode 100644
index 0000000..7fe57ce
--- /dev/null
+++ b/mk/commands.mk
@@ -0,0 +1,25 @@
+# REQUEST EXAMPLES
+
+NAME ?= John
+EMAIL ?= john@example.com
+
+# For requests where authentication is required.
+LOGIN ?=
+ifeq ($(LOGIN),)
+LOGIN_OPT =
+else
+LOGIN_OPT = -l $(LOGIN)
+endif
+
+ACTIVATION_KEY ?= put-your-key-here
+add-user:; $(Q)$(LOC)authc user add $(NAME) $(EMAIL) $(LOGIN_OPT)
+register:; $(Q)$(LOC)authc user register $(NAME) $(EMAIL)
+validate:; $(Q)$(LOC)authc user validate $(NAME) $(ACTIVATION_KEY)
+get-user:; $(Q)$(LOC)authc user get $(NAME) $(LOGIN_OPT)
+
+SERVICE    ?= 'auth'
+RESOURCE   ?= '*'
+UID        ?= 1000
+PERMISSION ?= Read
+permission-check:; $(LOC)authc permission check $(UID) $(SERVICE) $(RESOURCE) $(LOGIN_OPT)
+permission-set:;   $(LOC)authc permission set $(UID) $(SERVICE) $(RESOURCE) $(PERMISSION) $(LOGIN_OPT)
diff --git a/mk/dev.mk b/mk/dev.mk
new file mode 100644
index 0000000..2c92dfe
--- /dev/null
+++ b/mk/dev.mk
@@ -0,0 +1,15 @@
+# DEVELOPER TOOLS
+
+print-messages:;                      cat src/requests/*.cr | ./bin/get-messages.awk
+print-message-numbers:;               make -s print-messages | grep -E "^[0-9]" | sort -n
+print-messages-no-comments:;          make -s print-messages | grep -vE '^[[:blank:]]+#'
+print-response-messages:;             cat src/responses/*.cr | ./bin/get-messages.awk
+print-response-message-numbers:;      make -s print-response-messages | grep -E "^[0-9]" | sort -n
+print-response-messages-no-comments:; make -s print-response-messages | grep -vE '^[[:blank:]]+#'
+
+HTTPD_ACCESS_LOGS ?= /tmp/access-authd-docs.log
+HTTPD_ADDR        ?= 127.0.0.1
+HTTPD_PORT        ?= 9000
+DIR               ?= docs
+serve-doc:
+	darkhttpd $(DIR) --addr $(HTTPD_ADDR) --port $(HTTPD_PORT) --log $(HTTPD_ACCESS_LOGS)
diff --git a/mk/install.mk b/mk/install.mk
new file mode 100644
index 0000000..b2dc688
--- /dev/null
+++ b/mk/install.mk
@@ -0,0 +1,20 @@
+# DESTDIR envvar is a way to install the application in a different root (for building packages for example).
+PREFIX    ?= $(DESTDIR)/usr/local/
+BINDIR    ?= $(PREFIX)/bin
+SHAREDIR  ?= $(PREFIX)/share
+DOCDIR    ?= $(SHAREDIR)/doc/authd
+MANDIR    ?= $(SHAREDIR)/man
+
+install-authd: build-server ; install -D -m 555 ./bin/authd $(BINDIR)/authd
+install-authc: build-client ; install -D -m 555 ./bin/authc $(BINDIR)/authc
+install-binaries: install-authd install-authc
+
+install-man-authd:; install -D -m 444 ./man/authd.1 $(MANDIR)/authd.1
+install-man-authc:; install -D -m 444 ./man/authc.1 $(MANDIR)/authc.1
+install-man: install-man-authd install-man-authc
+
+doc:; crystal docs
+install-dev-doc: doc ; install -D docs/ $(DOCDIR)
+
+# By default, dev documentation isn't installed.
+install: install-binaries install-man #install-dev-doc
diff --git a/migration.mk b/mk/migration.mk
similarity index 100%
rename from migration.mk
rename to mk/migration.mk
diff --git a/mk/setup.mk b/mk/setup.mk
new file mode 100644
index 0000000..1bbd2eb
--- /dev/null
+++ b/mk/setup.mk
@@ -0,0 +1,11 @@
+PASSWORD_FILE  ?= /tmp/PASSWORD
+DATA_DIRECTORY ?= /tmp/DATA-AUTHD
+
+run-authd:; setup; $(Q)$(LOC)authd -k $(PASSWORD_FILE) -R -E --storage $(DATA_DIRECTORY)
+
+# First user always is the admin.
+add-first-user:; $(Q)$(LOC)authc bootstrap $(NAME) $(EMAIL)
+
+setup:; @[ -f $(PASSWORD_FILE) ] || echo -n "coucou" > $(PASSWORD_FILE)
+
+wipe-db:; rm -r $(DATA_DIRECTORY)