diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 1402e7f..a70ea2c 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -7,6 +7,7 @@ RUN apt-get update \
 	automake \
 	build-essential \
 	fpc \
+	libdsk4-dev \
 	make \
 	python3-pip \
 	unzip \
@@ -38,6 +39,11 @@ RUN cd /hdfmonkey/ \
 ADD https://github.com/pleumann/pasta80.git#v0.96 /opt/pasta80
 RUN cd /opt/pasta80 \
 	&& fpc pasta
+ADD --unpack https://www.seasip.info/ZX/taptools-1.1.3.tar.gz taptools/
+RUN cd taptools/taptools* \
+	&& ./configure \
+	&& make -j8 \
+	&& make install
 
 FROM ubuntu:24.04 AS z88dk
 RUN apt-get update \
@@ -90,6 +96,8 @@ RUN apt-get update \
 	ca-certificates \
 	fuse-emulator-utils \
 	git \
+	libdsk4 \
+	libdsk-utils \
 	m4 \
 	make \
 	openssh-client \
@@ -99,7 +107,6 @@ RUN apt-get update \
 	z80dasm \
 	zmakebas \
 	&& rm -rf /var/lib/apt/lists/*
-COPY --from=build /usr/local/bin/sjasmplus /bin/sjasmplus
 COPY --from=build /ttttt/ttttt /bin/ttttt
 COPY --from=build /zx0/src/zx0 /bin/zx0
 COPY --from=build /zx0/src/dzx0 /bin/dzx0
@@ -111,7 +118,6 @@ COPY --from=build /zxbasic/tools /opt/zxbasic/tools
 COPY --from=build /inpaws/inpaws /bin/inpaws
 COPY --from=build /usr/local/bin/ /usr/local/bin/
 COPY --from=build /usr/local/lib/python3.12/dist-packages/skoolkit/ /usr/local/lib/python3.12/dist-packages/skoolkit/
-COPY --from=build /usr/local/bin/hdfmonkey /bin/hdfmonkey
 COPY --from=build /opt/pasta80 /opt/pasta80
 COPY --from=z88dk /opt/z88dk/ /opt/z88dk/
 ENV PATH="${PATH}:/opt/z88dk/bin:/opt/zxbasic:/opt/zxbasic/tools:/opt/pasta80"
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 8b3ea4e..8845a2e 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -2,7 +2,7 @@
 	"name": "ZX Spectrum dev tools",
 	//"build": { "dockerfile": "Dockerfile" },
 	// The Dockerfile takes an age to build due to z88dk, so pull from prebuilt:
-	"image": "boarstone.mcphail.uk/mcphail/speccydev:v5.2",
+	"image": "boarstone.mcphail.uk/mcphail/speccydev:v6.0",
 	"remoteUser": "ubuntu",
 	"runArgs": [
 		"--network=host"
diff --git a/README.md b/README.md
index 9ad1a5d..daffe02 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Development tools for the ZX Spectrum v5.2
+# Development tools for the ZX Spectrum v6.0
 
 The Dockerfile is the basis of the devcontainer and can be changed to add or remove tools. It will take a long time to build locally, so by default the devcontainer will pull a prebuilt version. Edit `.devcontainer/devcontainer.json` if you would rather build your own.
 
@@ -57,18 +57,31 @@ The devcontainer contains:
 - hdfmonkey version 0.4 (for manipulating sdcard files for the Spectrum Next)
 - git (version control)
 - make (build control)
+- John Elliott's TAPTOOLS version 1.1.3
+    - specform (add +3DOS header to a file)
+    - unspecform (removes +3DOS header)
+    - tapcat (combines files into a .tap file)
+    - tapls (lists content of a .tap file)
+    - tapget (extracts one or more files from a .tap file)
+    - tapsplit (extracts everything from a .tap file in one go)
+    - tap2dsk (builds a +3 or PCDOS image from a .tap file)
+    - mkp3fs (builds a +3 or PCDOS image from separate files)
+    - bin2bas (wraps a machine code program in a 2-line BASIC program that runs it)
+    - sna2tap (converts a .sna format snapshot to a .tap file)
+    - sna2dsk (converts a .sna format snapshot to a .dsk file)
+    - dsk2tap (converts a .dsk image to a .tap file which when run on a +3 recreates the original disk)
 
 Several useful VSCode extentsions will be installed, including a Z80 assembly language server, Z80 and C debugger, Makefile support, BASIC syntax highlighter and more.
 
 Thanks to the many authors of these wonderful tools and extensions; to think what we could have made with these in 1985!
 
-## Breaking changes from v4.x
+## Breaking changes from v5.x
 
-Boriel BASIC (zxbasic) has been updated. There have been further bug fixes to array bounds which may break old code reliant on previous behaviour.
+Some of the binaries, such as `sjasmplus`, are now found in a different $PATH, which may break some existing build scripts.
 
-## New additions from v5.1
+## New additions from v5.2
 
-Boriel BASIC updated with bugfix for rounding error.
+Addition of TAPTOOLS.
 
 ## Install
 
@@ -134,3 +147,5 @@ skoolkit - copyright Richard Dymond and Philip M Anderson and released under GPL
 hdfmonkey - copyright Matt Westcott and released under GPL v3
 
 PASTA/80 - copyright Jörg Pleumann and released under GPL v3 with linking exception
+
+TAPTOOLS - copyright John Elliott and released under GPL v2
\ No newline at end of file