diff --git a/Makefile b/Makefile
index 1f8cb26..3efc944 100644
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,12 @@
 PRODUCT = config
-PLATFORMS = coco apple2 atari c64 adam pmd85
+PLATFORMS = coco apple2 atari c64 adam
 
 # Not currently in buildable state
 #PLATFORMS += dragon
 #PLATFORMS += msdos
 #PLATFORMS += pc6001
 #PLATFORMS += pc8801
+#PLATFORMS += pmd85
 #PLATFORMS += rc2014
 
 # Require special toolchains
@@ -29,7 +30,7 @@ SRC_DIRS = src src/%PLATFORM%
 # - a URL to a git repo
 # - empty which will use whatever is the latest
 # - undefined, no fujinet-lib will be used
-FUJINET_LIB =
+FUJINET_LIB = 4.7.9
 $(info FUJUNET_LIB=$(FUJINET_LIB))
 
 # Some platforms don’t use FUJINET_LIB; set this to allow builds to continue
@@ -93,6 +94,9 @@ apple2/disk-post::
 ########################################
 # Atari customization
 
+ATARI_LINKER_CFG = src/atari/atari.cfg
+EXECUTABLE_EXTRA_DEPS_ATARI = $(ATARI_LINKER_CFG)
+LDFLAGS_EXTRA_ATARI = -C $(ATARI_LINKER_CFG)
 EXTRA_INCLUDE_ATARI = src/atari/asminc
 
 ########################################
diff --git a/makefiles/README.md b/makefiles/README.md
index db55c30..e53e044 100644
--- a/makefiles/README.md
+++ b/makefiles/README.md
@@ -1,14 +1,20 @@
-# Makefile Framework
+# MekkoGX Modular Makefile Framework
 
-This directory provides a modular framework of Makefiles.
+[MekkoGX](https://github.com/fozzTexx/MekkoGX) is a cross-platform
+build template for retro and classic computers. It provides a
+collection of modular Makefiles and a top-level template project to
+simplify compiling, linking, and building disk images across multiple
+platforms.
 
 The main goal is to make it easy to:
 
-* Add new computer platforms by dropping in a new
-  platforms/<platform>.mk file.
-* Avoid per-project hacks inside platform makefiles.
-* Keep all project-specific customization in the top-level Makefile,
-  where it’s visible and easy to maintain.
+* Easily switch between different FUJINET_LIB versions by setting a
+  single variable (supports directories, releases, or Git URLs).
+* Keep platforms and toolchains fully modular: each uses a small .mk
+  file with shared logic in common.mk and tc-common.mk, making it
+  simple to add new platforms or toolchains.
+* **Keep all project-specific customization in the top-level Makefile,
+  where it’s visible and easy to maintain.**
 
 Think of this as a library of Makefiles.
 
@@ -117,7 +123,7 @@ With `SRC_DIRS = src src/%PLATFORM%`, building for `c64` would expand `%PLATFORM
 - `src/commodore`
 - `src/eightbit`
 
-### The `r2r` Target
+### The `r2r` "Ready 2 Run" Target
 
 The `r2r` target is the **default build output** for a platform. It
 will always build the platform’s executable. For some platforms, it
diff --git a/makefiles/common.mk b/makefiles/common.mk
index c1fb09b..f387a2e 100644
--- a/makefiles/common.mk
+++ b/makefiles/common.mk
@@ -10,9 +10,10 @@ $(info Building for PLATFORM=$(PLATFORM))
 
 include $(MWD)/../Makefile
 
-# Add GIT_VERSION macro define to CFLAGS, includes tag if available,
-# short commit hash, appends '*' if changes haven't been commited
-CFLAGS += -DGIT_VERSION='"$(shell git rev-parse --short HEAD)$(shell git status --porcelain | grep -q '^[ MADRCU]' && echo '*')"'
+# Define GIT_VERSION to be used in macro define to CFLAGS, includes
+# tag if available, short commit hash, appends '*' if changes haven't
+# been commited
+GIT_VERSION := $(shell git rev-parse --short HEAD)$(shell git status --porcelain | grep -q '^[ MADRCU]' && echo '*')
 
 IS_LIBRARY := $(if $(filter %.lib,$(PRODUCT)),1,0)
 ifeq ($(IS_LIBRARY),1)
diff --git a/makefiles/fnlib.py b/makefiles/fnlib.py
index 05e89db..950a228 100755
--- a/makefiles/fnlib.py
+++ b/makefiles/fnlib.py
@@ -16,7 +16,9 @@
 VERSION_NUM_RE = r"([0-9]+[.][0-9]+[.][0-9]+)"
 VERSION_NAME_RE = fr"v?{VERSION_NUM_RE}"
 LDLIB_REGEX = r"lib(.*)[.]a$"
-LDLIB_PLATFORMS = ["coco", "dragon", "msdos"]
+
+# FIXME - this is really toolchains, not platforms
+LDLIB_PLATFORMS = ["coco", "dragon"]
 
 def build_argparser():
   parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
@@ -265,7 +267,7 @@ def downloadZip(self):
 
         return
 
-      error_exit("Unable to download FujiNet library from", release_url)
+      #error_exit("Unable to download FujiNet library from", release_url)
       return
 
   def gitClone(self, url):
diff --git a/makefiles/toolchains/cc65.mk b/makefiles/toolchains/cc65.mk
index fc819e1..c26a309 100644
--- a/makefiles/toolchains/cc65.mk
+++ b/makefiles/toolchains/cc65.mk
@@ -5,10 +5,12 @@ AR_DEFAULT ?= ar65
 
 include $(MWD)/tc-common.mk
 
-CFLAGS += -O --cpu 6502
-ASFLAGS += --cpu 6502
+CFLAGS +=
+ASFLAGS +=
 LDFLAGS +=
 
+CFLAGS += -DGIT_VERSION='"$(GIT_VERSION)"'
+
 define include-dir-flag
   --include-dir $1
 endef
diff --git a/makefiles/toolchains/cmoc.mk b/makefiles/toolchains/cmoc.mk
index d072f93..ec67605 100644
--- a/makefiles/toolchains/cmoc.mk
+++ b/makefiles/toolchains/cmoc.mk
@@ -9,6 +9,8 @@ CFLAGS += --intdir=$(OBJ_DIR)
 ASFLAGS +=
 LDFLAGS +=
 
+CFLAGS += -DGIT_VERSION='"$(GIT_VERSION)"'
+
 # Needed because of using sed on error messages
 SHELL = /bin/bash -o pipefail
 
diff --git a/makefiles/toolchains/ow2.mk b/makefiles/toolchains/ow2.mk
index 436dd8c..dd2c1ac 100644
--- a/makefiles/toolchains/ow2.mk
+++ b/makefiles/toolchains/ow2.mk
@@ -3,10 +3,13 @@ AS_DEFAULT ?= wasm
 LD_DEFAULT ?= wlink OPTION quiet
 
 include $(MWD)/tc-common.mk
-CFLAGS += -0 -bt=dos -ms -s -osh -zu
+
+CFLAGS += -0 -bt=dos -ms -s -osh -zu -fr=$(basename $@).err
 ASFLAGS +=
 LDFLAGS += SYSTEM dos LIBPATH $(FUJINET_LIB_DIR)
 
+CFLAGS += -DGIT_VERSION=\"$(GIT_VERSION)\"
+
 define include-dir-flag
   -I$1
 endef
diff --git a/makefiles/toolchains/z88dk.mk b/makefiles/toolchains/z88dk.mk
index 003e822..1ceee5d 100644
--- a/makefiles/toolchains/z88dk.mk
+++ b/makefiles/toolchains/z88dk.mk
@@ -9,6 +9,8 @@ CFLAGS +=
 ASFLAGS +=
 LDFLAGS +=
 
+CFLAGS += -DGIT_VERSION='\"$(GIT_VERSION)\"'
+
 define include-dir-flag
   -I$1
 endef