diff --git a/pkgs/joinmarket/default.nix b/pkgs/joinmarket/default.nix
index 1b430dc..1e27c05 100644
--- a/pkgs/joinmarket/default.nix
+++ b/pkgs/joinmarket/default.nix
@@ -1,19 +1,16 @@
 { stdenv, lib, fetchFromGitHub, python3, nbPython3PackagesJoinmarket }:
 
 let
-  version = "0.9.10";
+  version = "0.9.11";
   src = fetchFromGitHub {
     owner = "joinmarket-org";
     repo = "joinmarket-clientserver";
     rev = "v${version}";
-    hash = "sha256-uNweI7VKC16CFn8MNOAvadcSnTjK/Fznfy4qctM5PR8=";
+    hash = "sha256-sYHhhp9BZz8udJuVAfwdt474OQPiye2ae5DOn5v5yEQ=";
   };
 
   runtimePackages = with nbPython3PackagesJoinmarket; [
-    joinmarketbase
-    joinmarketclient
-    joinmarketbitcoin
-    joinmarketdaemon
+    joinmarket
     matplotlib # for ob-watcher
   ];
 
@@ -35,7 +32,6 @@ stdenv.mkDerivation {
 
     cp scripts/joinmarketd.py "$out/bin/joinmarketd"
     cpBin add-utxo.py
-    cpBin convert_old_wallet.py
     cpBin receive-payjoin.py
     cpBin sendpayment.py
     cpBin sendtomany.py
@@ -62,7 +58,7 @@ stdenv.mkDerivation {
     description = "Bitcoin CoinJoin implementation";
     homepage = "https://github.com/JoinMarket-Org/joinmarket-clientserver";
     license = licenses.gpl3Only;
-    maintainers = with maintainers; [ nixbitcoin ];
+    maintainers = with maintainers; [ seberm nixbitcoin ];
     platforms = platforms.unix;
   };
 }
diff --git a/pkgs/python-packages/bencoderpyx/default.nix b/pkgs/python-packages/bencoderpyx/default.nix
index ff773aa..afbe399 100644
--- a/pkgs/python-packages/bencoderpyx/default.nix
+++ b/pkgs/python-packages/bencoderpyx/default.nix
@@ -16,7 +16,7 @@ buildPythonPackageWithDepsCheck rec {
   meta = with lib; {
     description = "A fast bencode implementation in Cython";
     homepage = "https://github.com/whtsky/bencoder.pyx";
-    maintainers = with maintainers; [ nixbitcoin ];
+    maintainers = with maintainers; [ seberm nixbitcoin ];
     license = licenses.bsd3;
   };
 }
diff --git a/pkgs/python-packages/chromalog/default.nix b/pkgs/python-packages/chromalog/default.nix
index 5a125c1..4aaedbf 100644
--- a/pkgs/python-packages/chromalog/default.nix
+++ b/pkgs/python-packages/chromalog/default.nix
@@ -18,7 +18,7 @@ buildPythonPackageWithDepsCheck rec {
   meta = with lib; {
     description = "Enhance Python with colored logging";
     homepage = "https://github.com/freelan-developers/chromalog";
-    maintainers = with maintainers; [ nixbitcoin ];
+    maintainers = with maintainers; [ seberm nixbitcoin ];
     license = licenses.mit;
   };
 }
diff --git a/pkgs/python-packages/default.nix b/pkgs/python-packages/default.nix
index 33e8d40..b984f4e 100644
--- a/pkgs/python-packages/default.nix
+++ b/pkgs/python-packages/default.nix
@@ -3,7 +3,6 @@ rec {
   pyPkgsOverrides = self: super: let
     inherit (self) callPackage;
     clightningPkg = pkg: callPackage pkg { inherit (nbPkgs.pinned) clightning; };
-    joinmarketPkg = pkg: callPackage pkg { inherit (nbPkgs.joinmarket) version src; };
   in
     {
       txzmq = callPackage ./txzmq {};
@@ -20,10 +19,7 @@ rec {
       runes = callPackage ./runes {};
       sha256 = callPackage ./sha256 {};
 
-      joinmarketbase = joinmarketPkg ./jmbase;
-      joinmarketclient = joinmarketPkg ./jmclient;
-      joinmarketbitcoin = joinmarketPkg ./jmbitcoin;
-      joinmarketdaemon = joinmarketPkg ./jmdaemon;
+      joinmarket = callPackage ./joinmarket { inherit (nbPkgs.joinmarket) version src; };
 
       ## Specific versions of packages that already exist in nixpkgs
 
diff --git a/pkgs/python-packages/jmbase/default.nix b/pkgs/python-packages/jmbase/default.nix
deleted file mode 100644
index 7f8d13a..0000000
--- a/pkgs/python-packages/jmbase/default.nix
+++ /dev/null
@@ -1,28 +0,0 @@
-{ version, src, lib, buildPythonPackageWithDepsCheck, fetchurl, future, twisted, service-identity, chromalog, txtorcon, pyaes }:
-
-buildPythonPackageWithDepsCheck rec {
-  pname = "joinmarketbase";
-  inherit version src;
-
-  postUnpack = "sourceRoot=$sourceRoot/jmbase";
-
-  propagatedBuildInputs = [ future twisted service-identity chromalog txtorcon pyaes ];
-
-  patchPhase = ''
-    sed -i 's|twisted==22.4.0|twisted==23.8.0|' setup.py
-    sed -i 's|service-identity==21.1.0|service-identity==23.1.0|' setup.py
-  '';
-
-  # Has no tests
-  doCheck = false;
-
-  pythonImportsCheck = [
-    "jmbase"
-  ];
-
-  meta = with lib; {
-    homepage = "https://github.com/Joinmarket-Org/joinmarket-clientserver";
-    maintainers = with maintainers; [ nixbitcoin ];
-    license = licenses.gpl3;
-  };
-}
diff --git a/pkgs/python-packages/jmbitcoin/default.nix b/pkgs/python-packages/jmbitcoin/default.nix
deleted file mode 100644
index 5c72ed6..0000000
--- a/pkgs/python-packages/jmbitcoin/default.nix
+++ /dev/null
@@ -1,27 +0,0 @@
-{ version, src, lib, buildPythonPackageWithDepsCheck, fetchurl, python-bitcointx, joinmarketbase, pytestCheckHook }:
-
-buildPythonPackageWithDepsCheck rec {
-  pname = "joinmarketbitcoin";
-  inherit version src;
-
-  postUnpack = "sourceRoot=$sourceRoot/jmbitcoin";
-
-  propagatedBuildInputs = [ python-bitcointx ];
-
-  checkInputs = [ joinmarketbase ];
-
-  nativeCheckInputs = [
-    pytestCheckHook
-  ];
-
-  patchPhase = ''
-    substituteInPlace setup.py \
-      --replace "'python-bitcointx==1.1.3'" "'python-bitcointx==1.1.4'"
-  '';
-
-  meta = with lib; {
-    homepage = "https://github.com/Joinmarket-Org/joinmarket-clientserver";
-    maintainers = with maintainers; [ nixbitcoin ];
-    license = licenses.gpl3;
-  };
-}
diff --git a/pkgs/python-packages/jmclient/default.nix b/pkgs/python-packages/jmclient/default.nix
deleted file mode 100644
index 617c678..0000000
--- a/pkgs/python-packages/jmclient/default.nix
+++ /dev/null
@@ -1,67 +0,0 @@
-{
-  pipBuildHook
-, version
-, src
-, lib
-, buildPythonPackageWithDepsCheck
-, argon2_cffi
-, autobahn
-, bencoderpyx
-, configparser
-, fetchurl
-, future
-, joinmarketbase
-, joinmarketbitcoin
-, joinmarketdaemon
-, klein
-, mnemonic
-, pyjwt
-, werkzeug
-}:
-
-buildPythonPackageWithDepsCheck rec {
-  pname = "joinmarketclient";
-  inherit version src;
-
-  postUnpack = "sourceRoot=$sourceRoot/jmclient";
-
-  propagatedBuildInputs = [
-    argon2_cffi
-    autobahn
-    bencoderpyx
-    configparser
-    future
-    joinmarketbase
-    joinmarketbitcoin
-    joinmarketdaemon
-    klein
-    mnemonic
-    pyjwt
-    werkzeug
-  ];
-
-  patchPhase = ''
-    substituteInPlace setup.py \
-      --replace "'klein==20.6.0'" "'klein>=20.6.0'"
-    substituteInPlace setup.py \
-      --replace "'argon2_cffi==21.3.0'" "'argon2_cffi==23.1.0'"
-    substituteInPlace setup.py \
-      --replace "'pyjwt==2.4.0'" "'pyjwt==2.8.0'"
-    substituteInPlace setup.py \
-      --replace "'werkzeug==2.2.3'" "'werkzeug==2.3.8'"
-  '';
-
-  # The unit tests can't be run in a Nix build environment
-  doCheck = false;
-
-  pythonImportsCheck = [
-    "jmclient"
-  ];
-
-  meta = with lib; {
-    description = "Client library for Bitcoin coinjoins";
-    homepage = "https://github.com/Joinmarket-Org/joinmarket-clientserver";
-    maintainers = with maintainers; [ nixbitcoin ];
-    license = licenses.gpl3;
-  };
-}
diff --git a/pkgs/python-packages/jmdaemon/default.nix b/pkgs/python-packages/jmdaemon/default.nix
deleted file mode 100644
index 5a6f720..0000000
--- a/pkgs/python-packages/jmdaemon/default.nix
+++ /dev/null
@@ -1,33 +0,0 @@
-{ version, src, lib, buildPythonPackageWithDepsCheck, fetchurl, txtorcon, cryptography, pyopenssl, libnacl, joinmarketbase }:
-
-buildPythonPackageWithDepsCheck rec {
-  pname = "joinmarketdaemon";
-  inherit version src;
-
-  postUnpack = "sourceRoot=$sourceRoot/jmdaemon";
-
-  propagatedBuildInputs = [ txtorcon cryptography pyopenssl libnacl joinmarketbase ];
-
-  patchPhase = ''
-    substituteInPlace setup.py \
-      --replace "'txtorcon==22.0.0'" "'txtorcon==23.5.0'"
-    substituteInPlace setup.py \
-      --replace "'libnacl==1.8.0'" "'libnacl==2.1.0'"
-    substituteInPlace setup.py \
-      --replace "'cryptography==41.0.2" "'cryptography==41.0.3"
-  '';
-
-  # The unit tests can't be run in a Nix build environment
-  doCheck = false;
-
-  pythonImportsCheck = [
-    "jmdaemon"
-  ];
-
-  meta = with lib; {
-    description = "Client library for Bitcoin coinjoins";
-    homepage = "https://github.com/Joinmarket-Org/joinmarket-clientserver";
-    maintainers = with maintainers; [ nixbitcoin ];
-    license = licenses.gpl3;
-  };
-}
diff --git a/pkgs/python-packages/joinmarket/default.nix b/pkgs/python-packages/joinmarket/default.nix
new file mode 100644
index 0000000..3f4b009
--- /dev/null
+++ b/pkgs/python-packages/joinmarket/default.nix
@@ -0,0 +1,103 @@
+{ version
+, src
+, lib
+, buildPythonPackageWithDepsCheck
+, pythonOlder
+, pythonAtLeast
+, pytestCheckHook
+, setuptools
+, fetchurl
+, chromalog
+, cryptography
+, service-identity
+, twisted
+, txtorcon
+, python-bitcointx
+, argon2_cffi
+, autobahn
+, bencoderpyx
+, klein
+, mnemonic
+, pyjwt
+, werkzeug
+, libnacl
+, pyopenssl
+}:
+
+buildPythonPackageWithDepsCheck rec {
+  pname = "joinmarket";
+  inherit version src;
+  format = "pyproject";
+
+  # Since v0.9.11, Python older than v3.8 is not supported. Python v3.12 is
+  # still not supported.
+  disabled = (pythonOlder "3.8") || (pythonAtLeast "3.12");
+
+  nativeBuildInputs = [
+    setuptools
+  ];
+
+  propagatedBuildInputs = [
+    # base jm packages
+    chromalog
+    cryptography
+    service-identity
+    twisted
+    txtorcon
+
+    # jmbitcoin
+    python-bitcointx
+
+    # jmclient
+    argon2_cffi
+    autobahn
+    bencoderpyx
+    klein
+    mnemonic
+    pyjwt
+    werkzeug
+
+    # jmdaemon
+    libnacl
+    pyopenssl
+  ];
+
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace-fail 'txtorcon==23.11.0' 'txtorcon==23.5.0' \
+      --replace-fail 'twisted==23.10.0' 'twisted==23.8.0' \
+      --replace-fail 'service-identity==21.1.0' 'service-identity==23.1.0' \
+      --replace-fail 'cryptography==41.0.6' 'cryptography==41.0.3'
+
+    # Modify pyproject.toml to include only specific modules. Do not include 'jmqtui'.
+    sed -i '/^\[tool.setuptools.packages.find\]/a include = ["jmbase", "jmbitcoin", "jmclient", "jmdaemon"]' pyproject.toml
+  '';
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
+
+  pytestFlagsArray = [
+    "test/jmbase/"
+    "test/jmbitcoin/"
+    "test/jmdaemon/test_enc_wrapper.py"
+
+    # Other tests require preconfigured bitcoind and miniircd
+    # https://github.com/JoinMarket-Org/joinmarket-clientserver/blob/master/docs/TESTING.md
+    # "test/jmclient/"
+    # "test/jmdaemon/"
+  ];
+
+  pythonImportsCheck = [
+    "jmbase"
+    "jmbitcoin"
+    "jmclient"
+    "jmdaemon"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/Joinmarket-Org/joinmarket-clientserver";
+    maintainers = with maintainers; [ seberm nixbitcoin ];
+    license = licenses.gpl3;
+  };
+}
diff --git a/pkgs/python-packages/python-bitcointx/default.nix b/pkgs/python-packages/python-bitcointx/default.nix
index a39ee5b..fd6b7fe 100644
--- a/pkgs/python-packages/python-bitcointx/default.nix
+++ b/pkgs/python-packages/python-bitcointx/default.nix
@@ -2,13 +2,13 @@
 
 buildPythonPackageWithDepsCheck rec {
   pname = "python-bitcointx";
-  version = "1.1.4";
+  version = "1.1.5";
 
   src = fetchFromGitHub {
     owner = "Simplexum";
     repo = "python-bitcointx";
     rev = "python-bitcointx-v${version}";
-    hash = "sha256-y8/cyLQr3GbpYqCg8LKTfyL0OX7eIo5AxjdFTWTqHmk=";
+    hash = "sha256-KXndYEsJ8JRTiGojrKXmAEeGDlHrNGs5MtYs9XYiqMo=";
   };
 
   patchPhase = ''
@@ -18,10 +18,14 @@ buildPythonPackageWithDepsCheck rec {
     done
   '';
 
+  pythonImportCheck = [
+    "bitcointx"
+  ];
+
   meta = with lib; {
     description = "Interface to Bitcoin transaction data structures";
     homepage = "https://github.com/Simplexum/python-bitcointx";
-    maintainers = with maintainers; [ nixbitcoin ];
+    maintainers = with maintainers; [ seberm nixbitcoin ];
     license = licenses.gpl3;
   };
 }
diff --git a/pkgs/python-packages/python-bitcointx/get-sha256.sh b/pkgs/python-packages/python-bitcointx/get-sha256.sh
index 0ecceb9..a625280 100755
--- a/pkgs/python-packages/python-bitcointx/get-sha256.sh
+++ b/pkgs/python-packages/python-bitcointx/get-sha256.sh
@@ -1,26 +1,26 @@
 #!/usr/bin/env bash
 set -euo pipefail
-. "${BASH_SOURCE[0]%/*}/../../../helper/run-in-nix-env" "git gnupg" "$@"
+. "${BASH_SOURCE[0]%/*}/../../../helper/run-in-nix-env" "git gnupg jq" "$@"
 
-TMPDIR=$(mktemp -d -p /tmp)
-trap 'rm -rf $TMPDIR' EXIT
-cd "$TMPDIR"
+latest=$(curl -s "https://api.github.com/repos/Simplexum/python-bitcointx/tags" | jq -r '.[0].name')
+echo "Latest release is $latest"
 
-echo "Fetching latest release"
-git clone https://github.com/simplexum/python-bitcointx 2> /dev/null
-cd python-bitcointx
-latest=python-bitcointx-v1.1.4
-echo "Latest release is ${latest}"
+tmpdir=$(mktemp -d /tmp/python-bitcointx-verify-gpg.XXX)
+trap 'rm -rf $tmpdir' EXIT
+repo=$tmpdir/repo
+git clone --depth 1 --branch "$latest" -c advice.detachedHead=false https://github.com/Simplexum/python-bitcointx "$repo"
 
 # GPG verification
-export GNUPGHOME=$TMPDIR
+export GNUPGHOME=$tmpdir
 echo "Fetching Dimitry Pethukov's Key"
 gpg --keyserver hkps://keyserver.ubuntu.com --recv-keys B17A35BBA187395784E2A6B32301D26BDC15160D 2> /dev/null
-echo "Verifying latest release"
-git verify-commit "$latest"
-
-git checkout -q "tags/$latest"
-rm -rf .git
+echo
+echo "Verifying commit"
+git -C "$repo" checkout -q "tags/$latest"
+git -C "$repo" verify-commit HEAD
+rm -rf "$repo"/.git
+hash=$(nix hash path "$repo")
 
+echo
 echo "tag: $latest"
-nix hash path .
+echo "hash: $hash"