diff --git a/etc/guix-install.sh b/etc/guix-install.sh
index 3215c4cfea9..39189304727 100755
--- a/etc/guix-install.sh
+++ b/etc/guix-install.sh
@@ -97,8 +97,7 @@ WAR=$'[ \033[33;1mWARN\033[0m ] '
 INF="[ INFO ] "
 
 DEBUG=0
-GNU_URL="https://ftp.gnu.org/gnu/guix/"
-#GNU_URL="https://alpha.gnu.org/gnu/guix/"
+GNU_URL="https://ftpmirror.gnu.org/gnu/guix/"
 
 # The following associative array holds set of GPG keys used to sign the
 # releases, keyed by their corresponding Savannah user ID.
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index 66af265cd0a..1da6e771948 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -4910,26 +4910,19 @@ key of digital audio.")
 (define-public wavpack
   (package
     (name "wavpack")
-    (version "5.4.0")
+    (version "5.8.1")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://github.com/dbry/WavPack/releases/download/"
                            version "/wavpack-" version ".tar.xz"))
        (sha256
-        (base32 "0ycbqarw25x7208jilh86vwwiqklr7f617jps9mllqc659mnmpjb"))))
+        (base32 "09hcbkjlg00gdcyqfviqa76wpx4xz4waxhfgmx88hb30k1a7f8kk"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags
        (list "--disable-static"
-             "--enable-tests")
-       #:phases
-       (modify-phases %standard-phases
-         (replace 'check
-           (lambda* (#:key tests? #:allow-other-keys)
-             (when tests?
-               (invoke "./cli/wvtest" "--default" "--short"))
-             #t)))))
+             "--enable-tests")))
     (home-page "https://www.wavpack.com/")
     (synopsis "Hybrid lossless audio codec")
     (description
diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 3cd2c838bfd..0e80c7eb208 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -21816,16 +21816,32 @@ throughput chromatin profiles.  Typical use cases include:
   (package
     (name "umi-tools")
     (version "1.1.6")
+    ;; TODO: Delete generated Cython C files.
     (source
      (origin
        (method git-fetch)
        (uri (git-reference
-             (url "https://github.com/CGATOxford/UMI-tools")
-             (commit (string-append "v" version))))
+              (url "https://github.com/CGATOxford/UMI-tools")
+              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32 "1liykfj4msvcgk8an5qq802jcxwlijqxrvijipqj1pwpxqzl9qnh"))))
     (build-system pyproject-build-system)
+    (arguments
+     (list
+      #:test-flags
+      #~(list "--ignore=tests/test_style.py"
+              "--ignore=step1_unit_test.py")
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after 'unpack 'fix-bash-path
+            (lambda _
+              (substitute* "tests/test_umi_tools.py"
+                (("/bin/bash")
+                 (which "sh")))))
+          (add-before 'check 'build-extensions
+            (lambda _
+              (invoke "python" "setup.py" "build_ext" "--inplace"))))))
     (inputs
      (list python-pandas
            python-future
@@ -21836,7 +21852,10 @@ throughput chromatin profiles.  Typical use cases include:
            python-scipy
            python-pysam))
     (native-inputs
-     (list python-setuptools python-wheel))
+     (list python-cython
+           python-pyaml
+           python-pytest
+           python-setuptools))
     (home-page "https://github.com/CGATOxford/UMI-tools")
     (synopsis "Tools for analyzing unique modular identifiers")
     (description "This package provides tools for dealing with @dfn{Unique
@@ -24259,7 +24278,7 @@ for the analysis and visualization of raw nanopore signal.")
           (base32 "0i4j5bq5q32q216ja7yvg0mpww5j0b9p8ky5bya4d31wqmygal8z"))))
       (build-system pyproject-build-system)
       (propagated-inputs (list python-setuptools))
-      (native-inputs (list python-setuptools python-wheel))
+      (native-inputs (list python-pytest python-setuptools))
       (home-page "https://github.com/dridk/PyVCF3")
       (synopsis "Variant Call Format parser for Python")
       (description "This package provides a @acronym{VCF,Variant Call Format}
diff --git a/gnu/packages/electronics.scm b/gnu/packages/electronics.scm
index b8349aa8ce4..d50bec38770 100644
--- a/gnu/packages/electronics.scm
+++ b/gnu/packages/electronics.scm
@@ -827,7 +827,7 @@ supported devices, as well as input/output file format support.")
 (define-public m8c
   (package
     (name "m8c")
-    (version "2.1.0")
+    (version "2.2.0")
     (source
      (origin
        (method git-fetch)
@@ -836,7 +836,7 @@ supported devices, as well as input/output file format support.")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1vv0m4ry23nns5a47m2n9k6i3wly2jjc5n1j3l7sh1m480ga3d42"))))
+        (base32 "1mx4n5di1bsm4ill55sf4dfa5rldrch0mrr4mk83x0xqd2rfy2mp"))))
     (build-system cmake-build-system)
     (arguments
      (list
@@ -921,6 +921,10 @@ which allows one to install the M8 firmware on any Teensy.")
               (string-append "-DTRELLIS_INSTALL_PREFIX="
                              #$(this-package-input "prjtrellis"))
               "-DUSE_IPO=OFF")
+      #:modules '((guix build qt-build-system)
+                  (guix build utils)
+                  (ice-9 ftw)
+                  (srfi srfi-26))
       #:phases
       #~(modify-phases %standard-phases
           ;; Required by himbaechel architecture, ng-ultra support.
@@ -947,10 +951,42 @@ which allows one to install the M8 firmware on any Teensy.")
                 (("\\$\\{CMAKE_SOURCE_DIR}/3rdparty/sanitizers-cmake/cmake")
                  (string-append
                   #$(this-package-native-input "sanitizers-cmake")
-                  "/share/sanitizers-cmake/cmake"))))))))
+                  "/share/sanitizers-cmake/cmake")))))
+          (add-after 'install 'run-icestorm-examples
+            (lambda* (#:key tests? #:allow-other-keys)
+              (when tests?
+                (setenv "PATH"
+                        (string-append #$output "/bin:" (getenv "PATH")))
+                ;; Tests need write access.
+                (copy-recursively
+                 (string-append
+                  #$(this-package-native-input "icestorm") "/examples")
+                 "/tmp/icestorm/examples")
+                (with-directory-excursion "/tmp/icestorm/examples"
+                  (for-each
+                   (cut invoke "make" "-C" <>)
+                   (scandir "." (negate (cut member <> '("." "..")))))))))
+          (add-after 'run-icestorm-examples 'run-prjtrellis-examples
+            (lambda* (#:key tests? #:allow-other-keys)
+              (when tests?
+                (setenv "PATH"
+                        (string-append #$output "/bin:" (getenv "PATH")))
+                ;; Tests need write access.
+                (copy-recursively
+                 (string-append
+                  #$(this-package-native-input "prjtrellis") "/examples")
+                 "/tmp/prjtrellis/examples")
+                (with-directory-excursion "/tmp/prjtrellis/examples"
+                  (for-each
+                   (cut invoke "make" "-C" <>)
+                   ;; Other tests require unavailable tools.
+                   (list "ecp5_evn" "tinyfpga_rev1"
+                         "tinyfpga_rev2" "versa5g")))))))))
     (native-inputs
-     (list googletest
-           sanitizers-cmake))
+     `(("icestorm" ,(package-source icestorm))
+       ("googletest" ,googletest)
+       ("prjtrellis" ,(package-source prjtrellis))
+       ("sanitizers-cmake" ,sanitizers-cmake)))
     (inputs
      (list apycula
            boost
@@ -1357,12 +1393,13 @@ GUI for sigrok.")
                 (("\\[FindOsvvmSettingsDirectory\\]")
                  " \"\" "))))
           (add-after 'fix-scripts 'check
-            (lambda _
-              (setenv "OSVVM_DIR" (getcwd))
-              (setenv "OSVVM_MUST_BUILD" (getcwd))
-              (invoke "tclsh"
-                      (string-append #$(this-package-native-input "nvc")
-                                     "/test/test-osvvm.tcl")))))))
+            (lambda* (#:key tests? #:allow-other-keys)
+              (when tests?
+                (setenv "OSVVM_DIR" (getcwd))
+                (setenv "OSVVM_MUST_BUILD" (getcwd))
+                (invoke "tclsh"
+                        (string-append #$(this-package-native-input "nvc")
+                                       "/test/test-osvvm.tcl"))))))))
     (native-inputs
      (list nvc tcl tcllib which))
     (native-search-paths
@@ -1398,6 +1435,8 @@ verification.")
         (base32 "1kn18ibvm7bzdyw2d914284wriravyh5qwfarj06pb052x1yblyx"))))
     (arguments
      (substitute-keyword-arguments (package-arguments osvvm)
+       ((#:tests? _ #t)
+        #f)
        ((#:phases phases #~%standard-phases)
         #~(modify-phases #$phases
             (delete 'fix-scripts)))))))
diff --git a/gnu/packages/fediverse.scm b/gnu/packages/fediverse.scm
index ce91efa9b4d..fdfd25f52c9 100644
--- a/gnu/packages/fediverse.scm
+++ b/gnu/packages/fediverse.scm
@@ -34,6 +34,7 @@
   #:use-module (guix utils)
   #:use-module (gnu packages)
   #:use-module (gnu packages bash)
+  #:use-module (gnu packages base)
   #:use-module (gnu packages check)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages databases)
@@ -44,6 +45,7 @@
   #:use-module (gnu packages gstreamer)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages image)
+  #:use-module (gnu packages nss)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-check)
@@ -137,7 +139,10 @@ the federation of interconnected video hosting services.")
            python-requests
            python-tomlkit
            python-urwid-3
-           python-wcwidth))
+           python-wcwidth
+           ;; Required to display images in the TUI
+           python-pillow
+           python-term-image))
     (home-page "https://github.com/ihabunek/toot/")
     (synopsis "Mastodon CLI client")
     (description "Interact with Mastodon social network from the command line.
@@ -219,34 +224,47 @@ seamlessly with your desktop environment.")
 (define-public python-mastodon-py
   (package
     (name "python-mastodon-py")
-    (version "1.5.1")
+    (version "2.1.4")
     (source
-      (origin
-        (method url-fetch)
-        (uri (pypi-uri "Mastodon.py" version))
-        (sha256
-         (base32
-          "1vikvkzcij2gd730cssigxi38vlmzqmwdy58r3y2cwsxifnxpz9a"))))
-    (build-system python-build-system)
-    (propagated-inputs
-     (list python-blurhash
-           python-dateutil
-           python-decorator
-           python-magic
-           python-pytz
-           python-requests
-           python-six))
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "mastodon_py" version))
+       (sha256
+        (base32 "1988sanhh4162jilffa7r1n9ylls5v868ndfmnsp0z5k9p5fj0k6"))))
+    (build-system pyproject-build-system)
+    (arguments
+     (list
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-before 'check 'set-check-environment
+            (lambda* (#:key inputs #:allow-other-keys)
+              (setenv "TZ" "UTC")
+              (setenv "TZDIR"
+                      (search-input-directory inputs
+                                              "share/zoneinfo")))))))
     (native-inputs
-     (list python-blurhash
-           python-cryptography
-           python-http-ece
+     (list nss-certs-for-test
            python-pytest
            python-pytest-cov
            python-pytest-mock
-           python-pytest-runner
-           python-pytest-vcr
+           python-pytest-recording
+           python-pytest-retry
+           python-pytz
            python-requests-mock
-           python-vcrpy))
+           python-setuptools
+           python-vcrpy
+           tzdata-for-tests))
+    (propagated-inputs
+     (list python-blurhash
+           python-decorator
+           python-dateutil
+           python-magic
+           python-requests
+           ;; [optional]
+           python-blurhash
+           python-cryptography
+           python-grapheme      ;project was not updated for 6y
+           python-http-ece))
     (home-page "https://github.com/halcy/Mastodon.py")
     (synopsis "Python wrapper for the Mastodon API")
     (description
diff --git a/gnu/packages/freedesktop.scm b/gnu/packages/freedesktop.scm
index d5589fba198..b6083dadea3 100644
--- a/gnu/packages/freedesktop.scm
+++ b/gnu/packages/freedesktop.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2015-2017, 2019, 2021-2022, 2025 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2017, 2018, 2019, 2021, 2022, 2023 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015 David Hashe <david.hashe@dhashe.com>
-;;; Copyright © 2016, 2017, 2019, 2021-2024 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2019, 2021-2025 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Kei Kebreau <kkebreau@posteo.net>
 ;;; Copyright © 2017 Nikita <nikita@n0.is>
 ;;; Copyright © 2017, 2018 Mark H Weaver <mhw@netris.org>
@@ -603,7 +603,16 @@ freedesktop.org project.")
        ;; XXX: Using 'debug' or 'debugoptimized' pulls in an additional test that
        ;; hangs, and the comments around it suggests that we should be using this
        ;; Meson target anyway.
-       #:build-type "release"))
+       #:build-type "release"
+       #:phases
+       ,@(if (target-64bit?)
+             `(%standard-phases)
+             `((modify-phases %standard-phases
+                 ;; Backported from a commit after the 1.29.0 release.
+                 (add-after 'unpack 'correct-value-type-in-atou64_test
+                   (lambda _
+                     (substitute* "test/test-utils.c"
+                       (("unsigned long val") "uint64_t val")))))))))
     (native-inputs
      (append (list check pkg-config python-minimal-wrapper python-pytest)
              (if (%current-target-system)
diff --git a/gnu/packages/gnome.scm b/gnu/packages/gnome.scm
index dda73b78176..94b8ce6ec4e 100644
--- a/gnu/packages/gnome.scm
+++ b/gnu/packages/gnome.scm
@@ -4672,7 +4672,9 @@ editors, IDEs, etc.")
                  ((#:configure-flags flags #~'())
                   #~(cons "-Dgtk4=false" (delete "-Dgtk3=false" #$flags)))))
     (propagated-inputs (modify-inputs (package-propagated-inputs vte)
-                         (replace "gtk" gtk+)))))
+                         (replace "gtk" gtk+)))
+    (properties
+     `((upstream-name . "vte")))))
 
 (define-public vte-with-sixel
   (package/inherit vte
diff --git a/gnu/packages/gnupg.scm b/gnu/packages/gnupg.scm
index c98d5fc7d26..621954a612c 100644
--- a/gnu/packages/gnupg.scm
+++ b/gnu/packages/gnupg.scm
@@ -47,6 +47,7 @@
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages bash)
   #:use-module (gnu packages base)
+  #:use-module (gnu packages check)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages crypto)
   #:use-module (gnu packages emacs)
@@ -616,17 +617,26 @@ distributed separately.")
 (define-public python-pygpgme
   (package
     (name "python-pygpgme")
-    (version "0.4")
+    (version "0.6")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "pygpgme" version))
        (sha256
         (base32
-         "1px1c5nqsls3fxg0zkyd9sgc5rxpdagvsadnp8fd5bmgrrjka5ws"))))
+         "0k25y3c07bkmz6q87lcbsbf34gva99rmdf5gffd8c1r1sccjif1n"))))
     (build-system pyproject-build-system)
+    (arguments
+     (list
+      #:test-flags
+      ;; gpgme.GpgmeError: (<ErrSource.DIRMNGR: 10>, <ErrCode.ENOENT: 32849>,
+      ;; 'No such file or directory')
+      #~(list "--deselect=tests/test_import.py::ImportTestCase::test_import_keys")))
     (native-inputs
-     (list gnupg python-setuptools python-wheel))
+     (list gnupg        ;to run gpg-connect-agent
+           pkg-config
+           python-pytest
+           python-setuptools))
     (inputs
      (list gpgme))
     (home-page "https://github.com/jhenstridge/pygpgme")
diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm
index fd7519b957c..4a613264dce 100644
--- a/gnu/packages/haskell-xyz.scm
+++ b/gnu/packages/haskell-xyz.scm
@@ -9336,6 +9336,24 @@ standard Read class, for better deserialisation of Haskell values from
 Strings.")
     (license license:lgpl2.1)))
 
+(define-public ghc-portmidi
+  (package
+    (name "ghc-portmidi")
+    (version "0.2.0.0")
+    (source (origin
+              (method url-fetch)
+              (uri (hackage-uri "PortMidi" version))
+              (sha256
+               (base32
+                "1jb722gwgx1fdyv64nj3by22970l3r04ibc3fa3hnp3k4l2jvk0f"))))
+    (build-system haskell-build-system)
+    (inputs (list alsa-lib))
+    (home-page "https://github.com/PortMidi/PortMidi-haskell")
+    (synopsis "Haskell bindings for PortMedia/PortMidi")
+    (description "This is a Haskell module for PortMidi audio library,
+which supports real-time MIDI input and output.")
+    (license license:bsd-3)))
+
 (define-public ghc-pqueue
   (package
     (name "ghc-pqueue")
diff --git a/gnu/packages/kde-multimedia.scm b/gnu/packages/kde-multimedia.scm
index cef10491542..31a61630065 100644
--- a/gnu/packages/kde-multimedia.scm
+++ b/gnu/packages/kde-multimedia.scm
@@ -453,6 +453,7 @@ projects.")
       #:configure-flags
       #~(list
          "-DBUILD_WITH_QT6=ON"
+         "-DWITH_FFMPEG=ON"
          (string-append "-DDOCBOOK_XSL_DIR="
                         #$(this-package-native-input "docbook-xsl")))
       #:qtbase qtbase
@@ -467,13 +468,13 @@ projects.")
     (native-inputs
      (list docbook-xsl
            extra-cmake-modules
-           ffmpeg-4
            kdoctools
            libxslt
            python-minimal-wrapper
            qttools))
     (inputs
      (list chromaprint
+           ffmpeg-6
            flac
            id3lib
            kconfig
@@ -548,7 +549,7 @@ variety of formats.")
            cdrdao
            cdrtools
            dvd+rw-tools
-           ffmpeg
+           ffmpeg-6
            flac
            karchive
            kauth
diff --git a/gnu/packages/kde-plasma.scm b/gnu/packages/kde-plasma.scm
index 28262aed53d..e255a0e0956 100644
--- a/gnu/packages/kde-plasma.scm
+++ b/gnu/packages/kde-plasma.scm
@@ -1057,7 +1057,7 @@ the schedule and venue information.")
     (inputs (list libxkbcommon
                   libva
                   pipewire
-                  ffmpeg
+                  ffmpeg-6
                   kcoreaddons
                   ki18n
                   kwayland
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index cbed9b1d45f..b8df4438e93 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -10986,6 +10986,26 @@ and Flatpak we expect PipeWire to provide a core building block for the future
 of Linux application development.")
     (license license:lgpl2.0+)))
 
+(define-public pipewire-minimal
+  ;; Used as libpipewire to reduce closure size and avoid dependency cycles.
+  (hidden-package
+   (package
+     (inherit pipewire)
+     (name "pipewire-minimal")
+     (arguments
+      (list
+       #:configure-flags
+       #~(list "-Dsession-managers=[]"
+               "-Ddbus=disabled"
+               "-Dflatpak=disabled"
+               ;; XXX: Otherwise test_loop will fail with:
+               ;;   libgcc_s.so.1 must be installed for pthread_cancel to work
+               (string-append "-Dc_link_args=-Wl,-rpath=" #$output "/lib"
+                              " -lgcc_s")
+               "-Db_asneeded=false")))
+     (native-inputs '())
+     (inputs '()))))
+
 (define-public wireplumber
   (package
     (name "wireplumber")
diff --git a/gnu/packages/python-check.scm b/gnu/packages/python-check.scm
index 1b16f2ffb44..4f72018d823 100644
--- a/gnu/packages/python-check.scm
+++ b/gnu/packages/python-check.scm
@@ -1073,45 +1073,38 @@ to establish class invariants.")
 (define-public python-inline-snapshot
   (package
     (name "python-inline-snapshot")
-    (version "0.18.2")
+    (version "0.29.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "inline_snapshot" version))
        (sha256
-        (base32 "09pqgz4phal2pjkv03wg3gvj7jr89rrb93rfw4hd2x9v8px4mqqv"))))
+        (base32 "19x5j97i96p3xr9xyjvwh0mmpcnypf8g5hf2jjm6g82ghsv3rrqp"))))
     (build-system pyproject-build-system)
     (arguments
      (list
+      ;; tests: 518 passed, 88 skipped, 1 xfailed, 903 subtests passed
       #:test-flags
-      ;; Missing "freezer" fixture
-      '(list "--ignore=tests/test_external.py"
-             "--ignore=tests/test_pytest_plugin.py"
-             "-k"
-             (string-append
-              "not test_trailing_comma"
-              ;; Cannot use inline-snapshop when xdist is available.
-              " and not test_xdist"
-              " and not test_xdist_disabled"
-              " and not test_xdist_and_disable"
-              " and not test_typing"))))
-    (propagated-inputs (list python-asttokens
-                             python-black
-                             python-click
-                             python-executing
-                             python-mkdocs
-                             python-rich
-                             python-tomli
-                             python-typing-extensions))
+      #~(list "--numprocesses" (number->string (min 8 (parallel-job-count)))
+              ;; To prevent adding mypy and pyright.
+              "--ignore=tests/test_typing.py")))
     (native-inputs
-     (list python-dirty-equals
+     (list python-black         ;XXX: used in tests/conftest.py to self lint
+           python-dirty-equals
            python-freezegun
            python-hatchling
-           python-pydantic
-           python-pytest
+           python-hypothesis
+           python-pydantic-2
+           python-pytest-bootstrap
+           python-pytest-freezer
            python-pytest-mock
-           python-pytest-subtests))
-    (home-page "https://pypi.org/project/inline-snapshot/")
+           python-pytest-subtests
+           python-pytest-xdist))
+    (propagated-inputs
+     (list python-asttokens
+           python-executing
+           python-rich))
+    (home-page "https://github.com/15r10nk/inline-snapshot/")
     (synopsis "Golden master/snapshot/approval testing library")
     (description
      "This package can be used for different things:
@@ -2925,6 +2918,32 @@ The main usage is to use the @code{qtbot} fixture, responsible for handling
 interaction, like key presses and mouse clicks.")
     (license license:expat)))
 
+(define-public python-pytest-recording
+  (package
+    (name "python-pytest-recording")
+    (version "0.13.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pytest_recording" version))
+       (sha256
+        (base32 "133nj8vha63gv226f0gvqn16gnazbn2rqh8amv2fx4jrm2r693an"))))
+    (build-system pyproject-build-system)
+    (arguments
+     (list #:tests? #f)) ;XXX: more than 50% tets failed
+    (native-inputs
+     (list python-pytest-bootstrap
+           python-hatchling))
+    (propagated-inputs
+     (list  python-vcrpy))
+    (home-page "https://github.com/kiwicom/pytest-recording")
+    (synopsis "Pytest support for recording and replaying HTTP traffic")
+    (description
+     "This package provides a Pytest plugin powered by
+@url{https://vcrpy.readthedocs.io/en/latest/, VCR.py} to record and replay
+HTTP traffic.")
+    (license license:expat)))
+
 (define-public python-pytest-remotedata
   (package
     (name "python-pytest-remotedata")
@@ -3014,6 +3033,27 @@ times.")
 eliminate flaky failures.")
     (license license:mpl2.0)))
 
+(define-public python-pytest-retry
+  (package
+    (name "python-pytest-retry")
+    (version "1.7.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pytest_retry" version))
+       (sha256
+        (base32 "03zqgl2y16pcf0w0sn7z9n1gaqmkspl9xfhigks9v50yy0wj7mgq"))))
+    (build-system pyproject-build-system)
+    (native-inputs
+     (list python-pytest-bootstrap
+           python-setuptools))
+    (home-page "https://github.com/str0zzapreti/pytest-retry")
+    (synopsis "Pytest plugin to retry flaky tests in CI environments")
+    (description
+     "This package provides a plugin for Pytest which adds the ability to retry
+flaky tests, thereby improving the consistency of the test suite results.")
+    (license license:expat)))
+
 ;; This is only used by python-sanic
 (define-public python-pytest-sanic
   (package
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 152b3c36d7c..dd0ad272382 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -949,6 +949,36 @@ part of @url{https://github.com/hgrecco/pint, Pint}, the Python units
 package. ")
     (license license:bsd-3)))
 
+(define-public python-grapheme
+  ;; 0.6.0 has not git tag, PyPI has no tests. use the latest commit on master
+  ;; branch.
+  (let ((commit "66f07ca02fc64a9ea2f9b4ad66593b226d473adb")
+        (revision "0"))
+    (package
+      (name "python-grapheme")
+      (version (git-version "0.6.0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+                (url "https://github.com/alvinlindstam/grapheme")
+                (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "0fqw6iymg7s8q1pfwijx0awcj1j55jppx7hfa5ci7y0c7x4jc8v9"))))
+      (build-system pyproject-build-system)
+      (native-inputs
+       (list python-pytest
+             python-setuptools))
+      (home-page "https://github.com/alvinlindstam/grapheme")
+      (synopsis "Unicode grapheme helpers")
+      (description
+       "This package provides a functionality for working with user perceived
+characters.  More specifically, string manipulation and calculation functions
+for working with grapheme cluster groups (graphemes) as defined by the
+@url{http://unicode.org/reports/tr29/, Unicode Standard Annex #29}.")
+      (license license:expat))))
+
 (define-public python-halo
   (package
     (name "python-halo")
@@ -1052,6 +1082,37 @@ supports:
 identities.")
     (license license:asl2.0)))
 
+(define-public python-inotify
+  (package
+    (name "python-inotify")
+    (version "0.2.12")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+              (url "https://github.com/dsoprea/PyInotify")
+              (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1n1rqpzk70ap2i4zk2k0znz407i909y2001v65agy7y30apjzb67"))))
+    (build-system pyproject-build-system)
+    (arguments
+     (list
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after 'unpack 'fix-requirements
+            (lambda _
+              (substitute* "inotify/resources/requirements.txt"
+                (("build")
+                 "")))))))
+    (native-inputs (list python-pytest python-setuptools))
+    (home-page "https://github.com/dsoprea/PyInotify")
+    (synopsis "Linux filesystem activity monitor library for Python")
+    (description
+     "This package provides an efficient and elegant inotify (Linux filesystem
+activity monitor) library for Python.")
+    (license license:gpl2)))
+
 (define-public python-jsonpath-ng
   (package
     (name "python-jsonpath-ng")
@@ -1622,6 +1683,62 @@ Form (EBNF) as input, and outputs a memoizing Parsing Expression Grammar (PEG)
 or Packrat parser in Python.")
     (license license:bsd-2)))
 
+(define-public python-term-image
+  (package
+    (name "python-term-image")
+    (version "0.7.2")
+    (source
+     (origin
+       ;; We need the full repo to run the tests.
+       (method git-fetch)
+       (uri (git-reference
+              (url "https://github.com/AnonymouX47/term-image")
+              (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1lsd5m0k5m99arkca2rzrrlln10c8ax6xfawqwjnspcbf8l3h3dq"))))
+    (build-system pyproject-build-system)
+    (arguments
+     (list #:test-flags
+           #~(list "tests"
+                   ;; These tests require network access.
+                   "-k" (string-append "not test_from_url"
+                                       " and not test_source"
+                                       " and not test_close"))
+           #:phases
+           #~(modify-phases %standard-phases
+               (add-after 'unpack 'adjust-dependencies
+                 (lambda _
+                   (substitute* "setup.py"
+                     (("pillow>=9.1,<11") "pillow>=9.1,<12")))))))
+    (propagated-inputs (list python-pillow python-requests))
+    (native-inputs
+     (list python-pytest
+           python-setuptools
+           python-urwid))
+    (home-page "https://github.com/AnonymouX47/term-image")
+    (synopsis "Display images in the terminal")
+    (description "term-image is a library and program to display images on
+compatible terminals.
+
+Features:
+@enumerate
+@item Multiple image formats (basically all formats supported by
+@code{PIL.Image.open()})
+@item Multiple image source types: PIL image instance, local file, URL
+@item Multiple image render styles (with automatic support detection)
+@item Support for multiple terminal graphics protocols, including Kitty
+@item Transparency support (with multiple options)
+@item Animated image support (including transparent ones)
+@item Integration into various TUI / terminal-based output libraries
+@item Terminal size awareness
+@item Automatic and manual image sizing
+@item Horizontal and vertical alignment
+@item Automatic and manual font ratio adjustment (to preserve image aspect
+ratio)
+@end enumerate")
+    (license license:expat)))
+
 (define-public python-trubar
   (package
     (name "python-trubar")
@@ -20749,6 +20866,7 @@ for the module to work under Python 3.3.")
 text.")
    (license license:bsd-3)))
 
+;; XXX: Not maintained since 2012.
 (define-public python-monthdelta
   (package
     (name "python-monthdelta")
@@ -20760,7 +20878,9 @@ text.")
        (sha256
         (base32 "0iwcsk7ryjw5h1wp10ykwd01f3am8gdlga6461q1v1njsk0rxh41"))))
     (build-system pyproject-build-system)
-    (native-inputs (list python-setuptools python-wheel))
+    (arguments
+     (list #:test-backend #~'unittest))
+    (native-inputs (list python-setuptools))
     (home-page "http://packages.python.org/MonthDelta")
     (synopsis "Date computations with months")
     (description
@@ -29076,6 +29196,7 @@ working with iterables.")
 Python.")
     (license license:expat)))
 
+;; XXX: Not maintained since 2020.
 (define-public python-pybktree
   (package
     (name "python-pybktree")
@@ -29087,7 +29208,9 @@ Python.")
        (sha256
         (base32 "0asd2lw9c5l5wi4z24k7gkhlprpdkcvs8d94szk56x9xvmy07h7f"))))
     (build-system pyproject-build-system)
-    (native-inputs (list python-setuptools python-wheel))
+    (arguments
+     (list #:tests? #f))        ;no tests provided
+    (native-inputs (list python-setuptools))
     (home-page "https://github.com/Jetsetter/pybktree")
     (synopsis "Pythonic BK-tree data structure")
     (description
diff --git a/gnu/packages/sdl.scm b/gnu/packages/sdl.scm
index 66cb9e9b931..7a0e12e886c 100644
--- a/gnu/packages/sdl.scm
+++ b/gnu/packages/sdl.scm
@@ -191,7 +191,7 @@ hardware.")
            libxkbcommon
            libxrandr
            mesa                         ;required by wayland
-           pipewire
+           pipewire-minimal
            pulseaudio
            wayland))
     (inputs
diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index b870f7396d2..944c99b8bf9 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -2971,6 +2971,7 @@ changeset itself; there won't be any extra commits.  Either GnuPG or OpenSSL
 can be used for signing.")
       (license license:gpl2))))                   ;per commitsigs.py
 
+;; XXX: Not maintained since 2019.
 (define-public heatwave
   (package
     (name "heatwave")
@@ -2982,6 +2983,10 @@ can be used for signing.")
        (sha256
         (base32 "1zzwmb9hvbyswzjgap02rrq8p44hb6xlzk1wd8w01mh2vva0xlx7"))))
     (build-system pyproject-build-system)
+    (arguments
+     (list #:tests? #f)) ;no tests in PyPI
+    (native-inputs
+     (list python-setuptools))
     (propagated-inputs
      (list python-click
            python-gitpython
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index e7af1b46846..6b8635f540a 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -2745,7 +2745,7 @@ SVCD, DVD, 3ivx, DivX 3/4/5, WMV and H.264 movies.")
            ;; XXX: lua > 5.2 is not currently supported; see meson.build
            lua-5.2
            mesa
-           pipewire
+           pipewire-minimal
            pulseaudio
            shaderc
            wayland
@@ -3937,7 +3937,7 @@ from sites like Twitch.tv and pipes them into a video player of choice.")
      (list alsa-lib
            `(,alsa-plugins "pulseaudio")
            bash-minimal
-           ffmpeg
+           ffmpeg-6
            fftw
            frei0r-plugins
            gdk-pixbuf