diff --git a/Makefile b/Makefile
index 5c8bf1526..7564bec18 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,6 @@
-# One of two project scripts files (Makefile, Shake.hs).
-# This one was a reboot of Makefile.old.
-# It is probably used by hledger developers/contributors but not end-users.
-# It requires GNU Make (https://www.gnu.org/software/make/).
-# Also, some rules may require:
+# Project scripts, some with file dependencies, using GNU Make.
+# Soon to be migrated to justfile or Shake.hs hopefully.
+# Also uses tools like
 # - stack (http://haskell-lang.org/get-started, installs libs and runs ghc)
 # - shelltestrunner (hackage, runs functional tests)
 # - quickbench (hackage/stackage, runs benchmarks)
@@ -12,21 +10,6 @@
 # - profiteur (hackage/stackage, renders profiles as html)
 # - hpack (hackage/stackage, generates cabal files from package.yaml files)
 # - perl
-#
-# Kinds of hledger builds:
-#
-# - stack build: built with stack
-#   (hledger/.stack-work/dist/ARCH/CABAL/build/hledger/hledger,
-#   .stack-work/install/ARCH/SNAPSHOT/GHC/bin/hledger, installs to ~/.local/bin)
-# - cabal (v1) build: built with cabal (and maybe a sandbox)
-#   (hledger/dist/build/hledger/hledger, installs to ~/.cabal/bin)
-# - ghc-only build: built quickly with ghc only, unoptimised, with DEVELOPMENT flag
-#   (hledgerdev)
-#
-# This makefile mostly uses stack to get things done (slow but robust).
-# It may sometimes (still ?) use ghc only, or cabal, when easier.
-
-# see also: https://gmsl.sourceforge.io/
 
 # XXX do we need this ?
 #SHELL=/bin/bash
diff --git a/Shake.hs b/Shake.hs
index 39b468d47..28db69032 100755
--- a/Shake.hs
+++ b/Shake.hs
@@ -14,22 +14,12 @@
 -- add this to see packages being installed instead of a long silence:
    --verbosity=info
 
-This is one of two collections of maintainer/developer scripts; Makefile is the other.
-This one, based on shake, provides a stronger programming language and
-more platform independence. It requires stack and will auto-install
-the haskell packages above when needed.
-
-Some of the commands below require additional command-line tools, including:
+Heavy project scripts, with file dependencies, using https://shakebuild.com.
+See also justfile, Makefile.
+Also uses tools like:
 - hpack (same version that's in current stack release)
-- GNU date (on mac: brew install coreutils)
-- groff
-- m4
-- makeinfo
-- pandoc
-- sed
-- mv
-- cat
-- rm
+- GNU date (on mac, get it with brew install coreutils)
+- pandoc, groff, m4, makeinfo, sed, mv, cat, rm
 
 Some things that may be useful when working on this:
 - https://docs.haskellstack.org/en/stable/GUIDE/#script-interpreter
@@ -66,7 +56,7 @@ usage =
   let scriptname = "Shake" in replaceRe [re|/Shake|] ('/':scriptname) $
   unlines
     ---------------------------------------79--------------------------------------
-  ["Shake: heavy project scripting. See also: make, ./bake"
+  ["Shake: heavy project scripting. See also: justfile, Makefile"
   ,"Usage:"
   ,"./Shake.hs [CMD [ARGS]]  run CMD, compiling this script first if needed"
   ,"./Shake    [CMD [ARGS]]  run CMD, using the compiled version of this script"
diff --git a/justfile b/justfile
index ba456001b..2c9779bee 100644
--- a/justfile
+++ b/justfile
@@ -1,5 +1,9 @@
-# * project task scripts managed with https://github.com/casey/just.
-# This aspires to gradually replace Makefile and bake.
+#!/usr/bin/env just
+# * Light project scripts, without file dependendencies, using https://github.com/casey/just.
+# https://docs.rs/regex/1.5.4/regex/#syntax Regexps
+# https://just.systems/man/en/chapter_31.html Functions
+# See also Makefile, Shake.hs
+
 
 @help:
     just -lu