Hi,

Thank you for your patience and work on nicely crafted patches!

I've reviewed them, applied some relaxation to description of jjson and
pushed as:

- 7eb3a5ac7dd * master gnu: fastfetch: Add more configure flags.
- a0b40f26cf4 * gnu: fastfetch: Update to 2.34.1.
- ab73372eec4 * gnu: Add yyjson.

--8<---------------cut here---------------start------------->8---
> $(./pre-inst-env guix build fastfetch)/bin/fastfetch
 ..                             `.    sharlatan@guxtil
 `--..```..`           `..```..--`    ----------------
   .-:///-:::.       `-:::///:-.      OS: Guix System x86_64
      ````.:::`     `:::.````         Kernel: Linux 6.11.10
           -//:`    -::-              Uptime: 10 days, 35 mins
            ://:   -::-               Packages: 237 (guix-system), 156 (guix-user)
            `///- .:::`               Shell: bash 5.1.16
             -+++-:::.                Display (DELL U2412M): 1920x1200 @ 60 Hz in 24" [External] *
              :+/:::-                 Display (DELL U2412M): 1920x1200 @ 60 Hz in 24" [External]
              `-....`                 DE: GNOME 44.10
                                      WM: Mutter (X11)
                                      WM Theme: Adwaita
                                      Theme: Adwaita [GTK2/3/4]
                                      Icons: Adwaita [GTK2/3/4]
                                      Font: Sans (11pt) [GTK2/3/4]
                                      Cursor: Adwaita (24px)
                                      Terminal: guix
                                      CPU: AMD Ryzen 7 3800X (16) @ 4.56 GHz
                                      GPU: AMD Radeon Pro WX 4100 [Discrete]
                                      Memory: 10.10 GiB / 62.73 GiB (16%)
                                      Swap: 744.75 MiB / 3.72 GiB (20%)
                                      Disk (/): 150.90 GiB / 453.71 GiB (33%) - ext4
                                      Disk (/mnt/library): 806.87 GiB / 5.46 TiB (14%) - xfs
                                      **********************************
                                      Locale: en_GB.utf8

--8<---------------cut here---------------end--------------->8---

Diff:

--8<---------------cut here---------------start------------->8---
@@ -1784,21 +1784,26 @@ (define-public yyjson
                                 "-DYYJSON_BUILD_TESTS=ON")))
     (build-system cmake-build-system)
     (home-page "https://github.com/ibireme/yyjson")
-    (synopsis "High performance JSON library written in ANSI C")
+    (synopsis "C implementation of JSON RFC 8259")
     (description
-     "Yyjson is a high performance JSON library written in ANSI C.  Some features include
+     "This package provides an implementation of JSON in ANSI C as specified
+in RFC 8259.
+Features:
 @itemize
 @item Fast: can read or write gigabytes per second JSON data on modern CPUs.
 @item Portable: complies with ANSI C (C89) for cross-platform compatibility.
-@item Strict: complies with RFC 8259 JSON standard, ensuring strict
-number format and UTF-8 validation.
+@item Strict: complies with
+@url{https://datatracker.ietf.org/doc/html/rfc8259,RFC 8259} JSON standard,
+ensuring strict number format and UTF-8 validation.
 @item Extendable: offers options to allow comments, trailing commas, NaN/Inf,
  and custom memory allocator.
-@item Accuracy: can accurately read and write int64, uint64, and double numbers.
-@item Flexible: supports unlimited JSON nesting levels, \\u0000 characters,
-and non null-terminated strings.
+@item Accuracy: can accurately read and write @code{int64}, @code{uint64}, and
+@code{double} numbers.
+@item Flexible: supports unlimited JSON nesting levels, @code{\\u0000}
+characters, and non null-terminated strings.
 @item Manipulation: supports querying and modifying using JSON Pointer,
 JSON Patch and JSON Merge Patch.
-@item Developer-Friendly: easy integration with only one .h and one .c file.
+@item Developer-Friendly: easy integration with only one @code{.h} and one
+@code{.c} file.
 @end itemize")
     (license license:expat)))

@@ -1779,11 +1779,11 @@ (define-public yyjson
        (file-name (git-file-name name version))
        (sha256
         (base32 "0kmzgs24v0rxlibg4qwlm6yplzs96pgxb1gyviijhkra9z7lx7ws"))))
+    (build-system cmake-build-system)
     (arguments
      (list
       #:configure-flags #~(list "-DBUILD_SHARED_LIBS=ON"
                                 "-DYYJSON_BUILD_TESTS=ON")))
-    (build-system cmake-build-system)
     (home-page "https://github.com/ibireme/yyjson")
     (synopsis "C implementation of JSON RFC 8259")
     (description
--8<---------------cut here---------------end--------------->8---

--
Thanks,
Oleg