diff --git a/bin/sake b/bin/sake
index f1d82ae..74ecc20 100755
--- a/bin/sake
+++ b/bin/sake
@@ -4,6 +4,9 @@
 # Wraps make
 #
 
+# Environment
+declare -ri NCORES=${NCORES:-2}
+
 # Options
 set -o errexit -o noglob -o nounset -o pipefail
 shopt -s expand_aliases
@@ -15,9 +18,8 @@ declare -r SELF=${0##*/}
 declare -xr JQTLIB='/usr/local/share/jqt'
 
 # GMake call
-declare -ri CORES=2
 declare -ra makeflags=(
-    --jobs=$(( CORES * 150 / 100  ))  # CORES * 1.5
+    --jobs=$(( NCORES * 150 / 100  ))  # NCORES * 1.5
     --makefile=Sakefile
     --output-sync=target
 )
@@ -61,6 +63,10 @@ case $1 in
         shift
         _sake build "$@"
         ;;
+    config)
+        shift
+        _sake configure "$@"
+        ;;
     clober)
         shift
         _sake clobber "$@"
diff --git a/docs/Sakefile b/docs/Sakefile
index befbb6e..2935dbb 100644
--- a/docs/Sakefile
+++ b/docs/Sakefile
@@ -43,21 +43,9 @@ JQTFLAGS += -5 --toc-depth=4
 
 # TODO: new, help, man page, SITE section on web, taxonomies (flags, series...)
 
-# Remove?
-#$(PagesHTML): $(Root)/%.html : $(Meta)/pages/%.json
-#$(PagesHTML): $(Root)/blog/%.html : $(Meta)/pages/blog/%.json
-
-
 # TODO: show content pending to render?
 #newer: $(Meta)/lastbuild
 
-
-# TODO: move to phase3
-depend:
-	grep -r '<%include\s\+[^>]\+>'  blocks/ layouts/\
-	| sed -e 's/:.*<%include\s\+/\t/;s/>.*$$//'	\
-	| jq -nrR -f ./phase3_layout.jq --arg Layouts $(Layouts)
-
 endif # __build
 
 # vim:ai:sw=8:ts=8:noet:fileencoding=utf8:syntax=make
diff --git a/docs/phase3_layout.jq b/docs/phase3_layout.jq
deleted file mode 100644
index be7ed44..0000000
--- a/docs/phase3_layout.jq
+++ /dev/null
@@ -1,29 +0,0 @@
-########################################################################
-# phase3_layout.jq -- Define contents for `$(Meta)/phase3_layout.json`.
-#
-# jq -nRr -f phase3_layout.jq
-#   < ...
-#   > $(Meta)/phase3_layout.json
-
-def makedepend:
-    def branch($root; $tree):
-        def _branch:
-            if in($tree)
-            then . , ($tree[.][] | _branch)
-            else .
-            end
-        ;
-        [$root | _branch][1:] | sort
-    ;
-    reduce inputs as $line ({}; ($line/"\t") as [$key,$value] | .[$key]+=[$value])
-    | . as $tree
-    | reduce keys_unsorted[] as $r ({}; .[$r]=branch($r; $tree))
-    | . as $dependents
-    | $tree | keys[]
-    | select(startswith($Layouts+"/"))
-    | "\(.): \($dependents[.] | join(" "))" 
-;
-
-makedepend
-
-# vim:ts=4:sw=4:ai:et:fileencoding=utf8:syntax=jq
diff --git a/share/sake.d/configuration.make b/share/sake.d/configuration.make
index ed63d3c..4a293b9 100644
--- a/share/sake.d/configuration.make
+++ b/share/sake.d/configuration.make
@@ -26,8 +26,8 @@ MAKECMDGOALS ?= build
 # Make configuration.
 ########################################################################
 
-# Use renamed makefile
-MAKE += --makefile=Sakefile
+#!# Use renamed makefile
+#!MAKE += --makefile=Sakefile
 
 # Disable builtins.
 MAKEFLAGS += --no-builtin-rules
diff --git a/share/sake.d/main.make b/share/sake.d/main.make
index abfef02..de480aa 100644
--- a/share/sake.d/main.make
+++ b/share/sake.d/main.make
@@ -2,27 +2,44 @@
 # main.make -- Main makefile.
 #
 # Imported variables:
-# 	JQTDIR
+# 	JQTLIB
 #
 # Variables:
 # 	Meta
 # Rules:
-# 	$(Meta) directory target and clobber target
+# 	$(Meta) directory `mkdir`, `clobber'  and ' clean'  targets
+# 	$(Root) directory `mkdir`, `clobber'  and ' clean'  targets
+# Targets:
+#	build
+# 	clean
+# 	clobber
+# 	nuke
+# 	configure
 #
 ########################################################################
 
-# Where all *.make files resides...
-MDIR := $(patsubst %/,%,$(dir $(abspath $(lastword $(MAKEFILE_LIST)))))
-
 ########################################################################
 # Load _Make_ configuration.
 ########################################################################
 
+# Where all *.make files resides...
+MDIR := $(patsubst %/,%,$(dir $(abspath $(lastword $(MAKEFILE_LIST)))))
+
 include $(MDIR)/configuration.make
 
 # Do not try to rebuilt static makefiles.
 $(CURDIR)/Sakefile $(MDIR)/main.make $(MDIR)/configuration.make: ;
 
+########################################################################
+# Print debug info.
+########################################################################
+
+ifneq (,$(TRACE))
+ifdef MAKE_RESTARTS
+$(info Makefile phase restarted: $(MAKE_RESTARTS))
+endif
+endif
+
 ########################################################################
 # Metadata directory for all generated make and metadata files.
 ########################################################################
@@ -36,16 +53,6 @@ $(Meta):
 # Delete all generated metadata
 clobber:: ; @rm -rf $(Meta)
 
-########################################################################
-# Print debug info.
-########################################################################
-
-ifneq (,$(TRACE))
-ifdef MAKE_RESTARTS
-$(info Makefile phase restarted: $(MAKE_RESTARTS))
-endif
-endif
-
 ########################################################################
 # Check command line sanity.
 ########################################################################
@@ -55,7 +62,7 @@ ifneq (1,$(words $(MAKECMDGOALS)))
 $(error Only one target accepted)
 endif
 
-# Do not build to clobber immediately.
+# Do not remake $(Meta)/phase[123].make to clobber immediately.
 ifeq (clobber,$(MAKECMDGOALS))
 ifeq (,$(wildcard $(Meta)))
 $(error Nothing to clobber)
@@ -66,11 +73,15 @@ endif
 # Include all makefile phases.
 ########################################################################
 
-# Recursive variable used in all included makefiles. This works because the
-# included files do not include other makefiles.
+# Recursive variables used in all included makefiles.
 
+# Current makefile.
+# $(THIS) works because the included files do not include other makefiles.
 THIS = $(lastword $(MAKEFILE_LIST))
 
+# JQ script generating target
+SCRIPT = $(MDIR)/$$(basename $$(notdir $$@)).jq
+
 ########################################################################
 # Derive metadata from `config.yaml` or `config.json`.
 
@@ -80,11 +91,12 @@ THIS = $(lastword $(MAKEFILE_LIST))
 # Do not try to rebuilt static makefiles.
 $(MDIR)/phase1.make: ;
 
-# If `__phase_1` is not defined because `phase1.make` does not exists, after
-# this point the rest of the file is ignored, but `phase1.make` is built
-# because a rule exists in the file `config.make`.  Then this `Makefile` is
-# restarted, `MAKE_RESTARTS` is be equal to 1, `phase1.make` is now loaded and
-# `__phase_1` is defined. Equivalent situation happens in all phases.
+# If `__phase_1` is not defined because `$(Meta)/phase1.make` does not
+# exists, after this point the rest of the file is ignored, but
+# `$(Meta)/phase1.make` is built because a rule exists in the file
+# `$(MDIR)/phase1.make`.  Then this `Makefile` is restarted,
+# `MAKE_RESTARTS` is be equal to 1, `$(Meta)/phase1.make` is now loaded
+# and `__phase_1` is defined. Equivalent situation happens in all phases.
 
 ifdef __phase_1
 
@@ -103,6 +115,7 @@ ifdef __phase_2
 # Define standard rules and rules for HTML pages and nodes.
 
 -include $(Meta)/phase3.make
+-include $(Meta)/phase3d.make
  include $(MDIR)/phase3.make
 
 # Do not try to rebuilt static makefiles.
@@ -111,8 +124,47 @@ $(MDIR)/phase3.make: ;
 ifdef __phase_3
 __build := 1
 
+########################################################################
+# Standard targets.
+########################################################################
+
+sake_builtin := new help touch list
+.PHONY: build clean clobber nuke configure $(sake_builtin)
+
+# Filter builtin tools defined in `sake`script.
+$(sake_builtin): ; @echo 'sake: Target `$@` not implemented.'
+
+# Copy Assets after create HTML pages.
+build:: $(PagesHTML)
+	@cp --verbose --recursive --update $(Assets)/* $(Root) \
+	| sed "s/^.*-> ./==> /;s/.$$//"
+	date -Iseconds > $(Meta)/lastbuild
+
+# Delete secondary files.
+clobber:: ; @rm -rf *~ *.bak  *.log
+
+# Delete metadata. Usage: `sake nuke && sake configure`.
+nuke: ; @rm -rf $(Meta)
+
+# Build all metadata and data files.
+configure: $(DataFiles)	# $(PagesJSON) are built for phase2.make
+
+########################################################################
+# Site destination directory.
+
+$(Root):
+	$(info ==> $@)
+	mkdir --parents $@ >/dev/null 2>&1 || true
+
+# Delete generated files. Usage: `sake clean && sake`.
+clean: ; @rm -rf $(Root)/*
+
+# Delete destination directory.
+clobber:: ; @rm -rf $(Root)
+
 ########################################################################
 # Several complementary makefiles.
+########################################################################
 
 include $(MDIR)/sitemap.make
 include $(MDIR)/styles.make
@@ -123,12 +175,6 @@ $(MDIR)/sitemap.make: ;
 $(MDIR)/styles.make: ;
 $(MDIR)/tools.make: ;
 
-# Filter builtin tools defined in `sake`script.
-sake_builtin := new help touch list
-.PHONY: $(sake_builtin)
-$(sake_builtin):
-	echo 'sake: Target `$@` not implemented.'
-
 endif # __phase_3
 endif # __phase_2
 endif # __phase_1
diff --git a/share/sake.d/phase1.jq b/share/sake.d/phase1.jq
index 745efed..0125642 100644
--- a/share/sake.d/phase1.jq
+++ b/share/sake.d/phase1.jq
@@ -2,7 +2,7 @@
 # phase1.jq -- Define contents for `$(Meta)/phase2.make`.
 #
 # jq -r -f phase1.jq
-#   < $(Meta)/site.json
+#   < $(Meta)/phase1_site.json
 #   > $(Meta)/phase1.make
 
 #
diff --git a/share/sake.d/phase1.make b/share/sake.d/phase1.make
index c2e251e..f5da368 100644
--- a/share/sake.d/phase1.make
+++ b/share/sake.d/phase1.make
@@ -13,9 +13,8 @@
 #
 # Rules defined in $(MDIR)/phase1.make:
 #	$(Meta)/config.json
-#	$(Meta)/site.json
+#	$(Meta)/phase1_site.json
 #	$(Meta)/phase1.make
-# 	$(Root) directory rule and clobber and clean targets
 
 SUPER := $(MDIR)/main.make
 
@@ -24,33 +23,21 @@ SUPER := $(MDIR)/main.make
 ########################################################################
 
 #
-# Create `$(Meta)/config.json` from `config.yaml` or `config.json`.
+# Create `$(Meta)/phase1.make` from `$(Meta)/phase1_site.json` using
+# `$(MDIR)/phase1.jq`.
 #
-ifeq (config.yaml,$(wildcard config.yaml))
-
-# Convert `config.yaml` to `$(Meta)/config.json`.
-$(Meta)/config.json: $(CURDIR)/config.yaml $(SUPER) $(THIS) \
-| $(Meta)
-	$(info ==> $@)
-	yaml2json < $< > $@
-
-else ifeq (config.json,$(wildcard config.json))
-
-# Convert `config.json` to `$(Meta)/config.json`.
-$(Meta)/config.json: $(CURDIR)/onfig.json $(SUPER) $(THIS) \
-| $(Meta)
+$(Meta)/phase1.make: $(SUPER) $(THIS) $(CURDIR)/Sakefile 
+$(Meta)/phase1.make: $(Meta)/phase1_site.json $(SCRIPT)
 	$(info ==> $@)
-	jqt -Pjson < $< > $@
-
-else
-$(error Configuration file not found)
-endif
+	jq --raw-output 			\
+	   --from-file $(MDIR)/phase1.jq	\
+	   < $< > $@
 
 #
-# Create `$(Meta)/site.json` from `$(Meta)/config.json` using
+# Create `$(Meta)/phase1_site.json` from `$(Meta)/config.json` using
 # `$(MDIR)/phase1_site.jq`.
 #
-$(Meta)/site.json: $(Meta)/config.json $(MDIR)/phase1_site.jq
+$(Meta)/phase1_site.json: $(Meta)/config.json $(SCRIPT) $(THIS)
 	$(info ==> $@)
 	jq --sort-keys				\
 	   --from-file $(MDIR)/phase1_site.jq	\
@@ -58,31 +45,26 @@ $(Meta)/site.json: $(Meta)/config.json $(MDIR)/phase1_site.jq
 	   < $< > $@
 
 #
-# Create `$(Meta)/phase1.make` from `$(Meta)/site.json` using
-# `$(MDIR)/phase1.jq`.
+# Create `$(Meta)/config.json` from `config.yaml` or `config.json`.
 #
-$(Meta)/phase1.make: $(Meta)/site.json $(MDIR)/phase1.jq 
-	$(info ==> $@)
-	jq --raw-output 			\
-	   --from-file $(MDIR)/phase1.jq	\
-	   < $< > $@
-
-ifdef __phase_1
-
-########################################################################
-# Site destination directory.
-########################################################################
+ifeq (config.yaml,$(wildcard config.yaml))
 
-$(Root):
+# Convert `config.yaml` to `$(Meta)/config.json`.
+$(Meta)/config.json: $(CURDIR)/config.yaml $(THIS) \
+| $(Meta)
 	$(info ==> $@)
-	mkdir --parents $@ >/dev/null 2>&1 || true
+	yaml2json < $< > $@
 
-# Delete generated files.
-clean: ; @rm -rf $(Root)/*
+else ifeq (config.json,$(wildcard config.json))
 
-# Delete destination directory.
-clobber:: ; @rm -rf $(Root)
+# Convert `config.json` to `$(Meta)/config.json`.
+$(Meta)/config.json: $(CURDIR)/config.json $(THIS) \
+| $(Meta)
+	$(info ==> $@)
+	jqt -Pjson < $< > $@
 
-endif # __phase_1
+else
+$(error Configuration file not found)
+endif
 
 # vim:ai:sw=8:ts=8:noet:fileencoding=utf8:syntax=make
diff --git a/share/sake.d/phase1_site.jq b/share/sake.d/phase1_site.jq
index 3805261..5c8fd92 100644
--- a/share/sake.d/phase1_site.jq
+++ b/share/sake.d/phase1_site.jq
@@ -3,7 +3,7 @@
 #
 # jq -S -f phase1_site.jq --arg Meta $(Meta)
 #   < $(Meta)/config.json
-#   > $(Meta)/site.json
+#   > $(Meta)/phase1_site.json
 
 # Delete `.defaults` and add some new members with default value if not defined
 # in the configuration file.
diff --git a/share/sake.d/phase2.make b/share/sake.d/phase2.make
index ee588ad..6262cb8 100644
--- a/share/sake.d/phase2.make
+++ b/share/sake.d/phase2.make
@@ -37,25 +37,11 @@ SUPER := $(Meta)/phase1.make
 # generate JSON metadata files for each page.
 ########################################################################
 
-phase2_files := $(Meta)/content.text $(Meta)/data.text
-
-# Do not preserve!
-.INTERMEDIATE: $(phase2_files)
-
-$(Meta)/content.text: $(THIS)
-	find $(Content) -type f -a	\
-		-name '[!_]*.md' -o	\
-		-name '[!_]*.mkd' -o	\
-		-name '[!_]*.markdown'	\
-	> $@
-
-$(Meta)/data.text: $(THIS)
-	find $(Data) -name '*.*' > $@
-
 #
 # Create `$(Meta)/phase2.make` from `find` output using `$(MDIR)/phase2.jq`.
 #
-$(Meta)/phase2.make: $(MDIR)/phase2.jq $(phase2_files) $(SUPER) $(THIS)
+$(Meta)/phase2.make: $(SUPER) $(THIS)
+$(Meta)/phase2.make: $(Meta)/content.text $(Meta)/data.text $(SCRIPT)
 	$(info ==> $@)
 	jq --raw-input				\
 	   --raw-output				\
@@ -66,7 +52,22 @@ $(Meta)/phase2.make: $(MDIR)/phase2.jq $(phase2_files) $(SUPER) $(THIS)
 	   --arg Data $(Data)			\
 	   --arg Root $(Root)			\
 	   --arg Meta $(Meta)			\
-	   < $(Meta)/content.text > $@
+	   < $< > $@
+
+# Do not preserve!
+.INTERMEDIATE: $(Meta)/content.text $(Meta)/data.text
+
+$(Meta)/content.text: $(THIS)
+	$(info ==> $@)
+	find $(Content) -type f -a	\
+		-name '[!_]*.md' -o	\
+		-name '[!_]*.mkd' -o	\
+		-name '[!_]*.markdown'	\
+	> $@
+
+$(Meta)/data.text: $(THIS)
+	$(info ==> $@)
+	find $(Data) -name '*.*' > $@
 
 ifdef __phase_2
 
@@ -147,11 +148,6 @@ $(Meta)/pages-by-id.json: $(PagesJSON)
 	| jq -n 'reduce inputs as $$p ({}; . + {($$p.Id):$$p})'	\
 	> $@
 
-# Alternative:
-#$(Meta)/pages-by-id.json: $(PagesJSON)
-#	$(info ==> $@)
-#	@jq --slurp 'reduce .[] as $$p ({}; . + {($$p.Id): $$p})' $^ > $@
-
 ########################################################################
 # Files derived from `$(Data)/*`.
 ########################################################################
diff --git a/share/sake.d/phase2_page.jq b/share/sake.d/phase2_page.jq
index 47d8bc6..4814c8c 100644
--- a/share/sake.d/phase2_page.jq
+++ b/share/sake.d/phase2_page.jq
@@ -25,6 +25,7 @@ def notdir:
 ;
 
 # `$(Meta)/pages/path/to/page.json` => `(../)+`
+# BUG! No usar Meta en input!!!
 def page_base:
     # . as $target
     ("../" * (((. / "/") | length) - 3)) // ""
diff --git a/share/sake.d/phase3.jq b/share/sake.d/phase3.jq
index cc9fc60..b41dd7f 100644
--- a/share/sake.d/phase3.jq
+++ b/share/sake.d/phase3.jq
@@ -18,13 +18,13 @@ def dependencies:
     else "" end
     +
     if .Datasets
-    then " " + ([.Datasets[] | basename | "$(Meta)/\(.).json"] | join(" "))
+    then " " + ([.Datasets[] | basename | "\($Meta)/\(.).json"] | join(" "))
     else "" end
 ;
 
 def dataset:
     if .Datasets
-    then " " + ([.Datasets[] | basename | "-m\(.):$(Meta)/\(.).json"] | join(" "))
+    then " " + ([.Datasets[] | basename | "-m\(.):\($Meta)/\(.).json"] | join(" "))
     else "" end
 ;
 
@@ -35,7 +35,15 @@ def flags:
 ;
 
 def page:
-    " -mpage:$(Meta)/pages/\(.Id).json"
+    " -mpage:\($Meta)/pages/\(.Id).json"
+;
+
+# %.html: _site/%.html ;
+# blog/%.html: _site/blog/%.html ;
+def page_target:
+    map(.Path)
+    | unique[]
+    | "\(.)%.html: \($Root)/\(.)%.html ;"
 ;
 
 def layout:
@@ -51,26 +59,20 @@ def layout:
 # 	@$(JQT) -d $< -mpage:.meta/pages/blog/2017-04-13-hello.json layouts/page.html | $(DETAILS) > $@
 def page_rule:
     .[] |
-    $Root+"/"+.URL+": " + .Source + layout + dependencies,
+    "\($Root)/"+.URL+": " + .Source + dependencies,
     "\t$(info ==> $@)",
     "\t@$(JQT) -d $<" + dataset + flags + page + layout + " | $(DETAILS) > $@"
 ;
 
-# %.html: _site/%.html ;
-# blog/%.html: _site/blog/%.html ;
-def page_target:
-    map(.Path)
-    | unique[]
-    | "\(.)%.html: $(Root)/\(.)%.html ;"
-;
-
 #
 # Output makefile
 #
 
 "__phase_3 := 1\n",
 page_target, # for each path
+"",
 page_rule,   # for each page
-"\n# \u0076im:syntax=make"
+"",
+"# \u0076im:syntax=make"
 
 # vim:ts=4:sw=4:ai:et:fileencoding=utf8:syntax=jq
diff --git a/share/sake.d/phase3.make b/share/sake.d/phase3.make
index 7922028..e66be97 100644
--- a/share/sake.d/phase3.make
+++ b/share/sake.d/phase3.make
@@ -6,12 +6,8 @@
 #
 # Rules defined in $(MDIR)/phase3.make:
 #	$(Meta)/phase3.make
-#
-# Targets defined in $(MDIR)/phase3.make:
-#	build
-# 	clean
-# 	clobber
-# 	configure
+#	$(Meta)/phase3_json.json
+#	$(Meta)/phase3d.make
 
 SUPER := $(Meta)/phase2.make
 
@@ -20,13 +16,35 @@ SUPER := $(Meta)/phase2.make
 ########################################################################
 
 # Build rules for each page.
-$(Meta)/phase3.make: $(Meta)/pages-by-id.json $(MDIR)/phase3.jq $(SUPER) $(THIS)
+$(Meta)/phase3.make: $(SUPER) $(THIS)
+$(Meta)/phase3.make: $(Meta)/pages-by-id.json $(SCRIPT)
+	$(info ==> $@)
+	jq --raw-output					\
+	   --arg Meta $(Meta)				\
+	   --arg Layouts $(Layouts)			\
+	   --arg Root $(Root)				\
+	   --from-file $(MDIR)/phase3.jq		\
+	   < $< > $@
+
+# Do not preserve!
+.INTERMEDIATE: $(Meta)/phase3_json.json
+
+$(Meta)/phase3_json.json: $(SCRIPT) $(THIS)
+	$(info ==> $@)
+	grep -r '<%include\s\+[^>]\+>'  blocks/ layouts/\
+	| sed -e 's/:.*<%include\s\+/\t/;s/>.*$$//'	\
+	| jq -nrR					\
+	     --arg Layouts $(Layouts)			\
+	     --from-file $(MDIR)/phase3_json.jq		\
+	     > $@
+
+$(Meta)/phase3d.make: $(Meta)/pages-by-id.json $(Meta)/phase3_json.json $(SCRIPT) $(THIS)
 	$(info ==> $@)
-	jq --raw-output				\
-	   --arg Meta $(Meta)			\
-	   --arg Layouts $(Layouts)		\
-	   --arg Root $(Root)			\
-	   --from-file $(MDIR)/phase3.jq	\
+	jq --raw-output					\
+	   --arg Layouts $(Layouts)			\
+	   --arg Root $(Root)				\
+	   --slurpfile ldep $(Meta)/phase3_json.json	\
+	   --from-file $(MDIR)/phase3d.jq		\
 	   < $< > $@
 
 ifdef __phase_3
@@ -36,10 +54,10 @@ ifdef __phase_3
 #
 
 define JQTFLAGS :=
-  -msite:$(Meta)/site.json	\
-  -I./				\
-  -L$(Meta)			\
-  -L$(Blocks)			\
+  -msite:$(Meta)/phase1_site.json	\
+  -I./					\
+  -L$(Meta)				\
+  -L$(Blocks)				\
   -ifilters
 endef
 
@@ -62,40 +80,17 @@ $(PagesHTML): $(Meta)/phase3.make \
 # Content example for `$(Meta)/phase3.make`:
 
 # __phase_3 := 1
-# _site/jqt/index.html: content/index.md layouts/page.html content/macros.m content/LINKS.txt content/EXAMPLE.txt .meta/snippets.json
+# _site/jqt/index.html: content/index.md content/macros.m content/LINKS.txt content/EXAMPLE.txt .meta/snippets.json
 # 	$(info ==> $@)
 # 	@$(JQT) -d $< -mpage:.meta/pages/index.json layouts/page.html | $(DETAILS) > $@
 # ...
-# _site/jqt/blog/2017-04-13-hello.html: content/blog/2017-04-13-hello.md layouts/page.html .meta/snippets.json
+# _site/jqt/blog/2017-04-13-hello.html: content/blog/2017-04-13-hello.md .meta/snippets.json
 # 	$(info ==> $@)
 # 	@$(JQT) -d $< -mpage:.meta/pages/blog/2017-04-13-hello.json layouts/page.html | $(DETAILS) > $@
-# _site/jqt/blog/index.html: content/blog/index.md layouts/blog.html .meta/snippets.json
+# _site/jqt/blog/index.html: content/blog/index.md .meta/snippets.json
 # 	$(info ==> $@)
 # 	@$(JQT) -d $< -mpage:.meta/pages/blog/index.json layouts/blog.html | $(DETAILS) > $@
 
-########################################################################
-# Standard targets.
-########################################################################
-
-.PHONY: clean clobber
-
-# Copy Assets after create HTML pages.
-build:: $(PagesHTML)
-	@cp --verbose --recursive --update $(Assets)/* $(Root) \
-	| sed "s/^.*-> ./==> /;s/.$$//"
-	date -Iseconds > $(Meta)/lastbuild
-
-# Delete secondary files.
-clobber:: ; @rm -rf *~ *.bak  *.log
-
-########################################################################
-# Variations on the `build` target.
-
-.PHONY: configure
-
-# Build all metadata and data files.
-configure: $(DataFiles)	# $(PagesJSON) are built for phase2.make
-
 endif # __phase_3
 
 # vim:ai:sw=8:ts=8:noet:fileencoding=utf8:syntax=make
diff --git a/share/sake.d/phase3_json.jq b/share/sake.d/phase3_json.jq
new file mode 100644
index 0000000..881000c
--- /dev/null
+++ b/share/sake.d/phase3_json.jq
@@ -0,0 +1,27 @@
+########################################################################
+# phase3_json.jq -- Define contents for `$(Meta)/phase3_json.json`.
+#
+# output from grep/sed includes |
+# jq -nR
+#    -f ./phase3_json.jq
+#    --arg Layouts $(Layouts)
+#   > $(Meta)/phase3_json.json
+
+def branch($root; $tree):
+    def _branch:
+        if in($tree)
+        then . , ($tree[.][] | _branch)
+        else .
+        end
+    ;
+    [$root | _branch] | sort
+;
+
+reduce inputs as $line
+    ({}; ($line/"\t") as [$key,$value] | .[$key]+=[$value])
+| . as $tree
+| reduce (keys_unsorted[]|select(startswith($Layouts+"/"))) as $r
+    ({}; .[$r]=branch($r; $tree))
+
+
+# vim:ts=4:sw=4:ai:et:fileencoding=utf8:syntax=jq
diff --git a/share/sake.d/phase3d.jq b/share/sake.d/phase3d.jq
new file mode 100644
index 0000000..e87fc2c
--- /dev/null
+++ b/share/sake.d/phase3d.jq
@@ -0,0 +1,26 @@
+########################################################################
+# phase3d.jq -- Define contents for `$(Meta)/phase3d.make`.
+#
+#?# jq -r -f phase3.jq
+#?#   --arg Layouts $(Layouts)
+#?#   --arg Root $(Root)
+#?#   --slurpfile ldep $(Meta)/phase3_json.json
+#?#   < $(Meta)/pages-by-id.json
+#?#   > $(Meta)/phase3d.make
+
+#_site/content.html: blocks/body/_toc/markup.html blocks/content/markup.html blocks/footer/markup.html blocks/header/markup.html blocks/license/markup.html blocks/logo/markup.html blocks/menu-bar/markup.html blocks/repository/markup.html blocks/toc/markup.html layouts/default.html layouts/page-toc.html
+#_site/data.html: blocks/body/_toc/markup.html blocks/content/markup.html blocks/footer/markup.html blocks/header/markup.html blocks/license/markup.html blocks/logo/markup.html blocks/menu-bar/markup.html blocks/repository/markup.html blocks/toc/markup.html layouts/default.html layouts/page-toc.html
+def page_layouts:
+    .[]
+    | "\($Layouts)/\(.Layout).html" as $l
+    | $Root+"/"+.URL+": " + ($ldep[0][$l] | join(" "))
+;
+
+#
+# Output makefile
+#
+
+page_layouts,
+"\n# \u0076im:syntax=make"
+
+# vim:ts=4:sw=4:ai:et:fileencoding=utf8:syntax=jq
diff --git a/share/sake.d/sitemap.jq b/share/sake.d/sitemap.jq
index d39df95..3e38815 100644
--- a/share/sake.d/sitemap.jq
+++ b/share/sake.d/sitemap.jq
@@ -2,7 +2,7 @@
 # sitemap.jq -- Generate site map XML file.
 #
 # jq -r -f sitemap.jq
-#   --slurpfile site $(Meta)/site.json
+#   --slurpfile site $(Meta)/phase1_site.json
 #   < $(Meta)/pages-by-id.json 
 #   > $(Root)/sitemap.xml
 
diff --git a/share/sake.d/sitemap.make b/share/sake.d/sitemap.make
index 1ec2cb3..e36f9ad 100644
--- a/share/sake.d/sitemap.make
+++ b/share/sake.d/sitemap.make
@@ -5,12 +5,13 @@
 #	$(Root)/sitemap.xml
 #	$(Root)/sitemap.xml.gz
 
-$(Root)/sitemap.xml: $(Meta)/pages-by-id.json $(Meta)/site.json $(MDIR)/sitemap.jq $(THIS) \
+$(Root)/sitemap.xml: $(SCRIPT) $(THIS)
+$(Root)/sitemap.xml: $(Meta)/pages-by-id.json $(Meta)/phase1_site.json \
 | $(Root)
 	$(info ==> $@)
-	jq --raw-output				\
-	   --slurpfile site $(Meta)/site.json	\
-	   --from-file $(MDIR)/sitemap.jq	\
+	jq --raw-output					\
+	   --slurpfile site $(Meta)/phase1_site.json	\
+	   --from-file $(MDIR)/sitemap.jq		\
 	   < $< > $@
 
 $(Root)/sitemap.xml.gz: $(Root)/sitemap.xml