add: pixi (#8442) (#8466)

(cherry picked from commit bf278d66a4)

Co-authored-by: metcya <134973769+metcya@users.noreply.github.com>

anda/system/pixi/anda.hcl

@@ -0,0 +1,5 @@
+project pkg {
+  rpm {
+    spec = "pixi.spec"
+  }
+}

anda/system/pixi/pixi.spec

@@ -0,0 +1,47 @@
+Name:           pixi
+Version:        0.62.1
+Release:        1%{?dist}
+Summary:        A cross-platform, multi-language package manager
+License:        BSD-3-Clause
+URL:            https://pixi.sh
+Source:         https://github.com/prefix-dev/pixi/archive/refs/tags/v%{version}.tar.gz
+Packager:       metcya <metcya@gmail.com>
+
+BuildRequires:  anda-srpm-macros
+BuildRequires:  cargo-rpm-macros >= 24
+BuildRequires:  mold
+
+%pkg_completion -Befz
+
+%description
+pixi is a cross-platform, multi-language package manager and workflow tool
+built on the foundation of the conda ecosystem. It provides developers with an
+exceptional experience similar to popular package managers like cargo or npm,
+but for any language.
+
+%prep
+%autosetup
+%cargo_prep_online
+
+%build
+%cargo_build
+for shell in bash elvish fish zsh; do
+    target/rpm/%{name} completion --shell $shell > completions.$shell
+done
+%dnl %cargo_license_online > LICENSE.dependencies
+
+%install
+install -Dm 755 target/rpm/%{name} %{buildroot}%{_bindir}/%{name}
+install -Dm 644 completions.bash %{buildroot}%{bash_completions_dir}/%{name}
+install -Dm 644 completions.elvish %{buildroot}%{elvish_completions_dir}/%{name}.elv
+install -Dm 644 completions.fish %{buildroot}%{fish_completions_dir}/%{name}.fish
+install -Dm 644 completions.zsh %{buildroot}%{zsh_completions_dir}/_%{name}
+
+%files
+%doc README.md SECURITY.md CHANGELOG.md CODE_OF_CONDUCT.md CONTRIBUTING.md
+%license LICENSE
+%{_bindir}/%{name}
+
+%changelog
+* Wed Dec 17 2025 metcya <metcya@gmail.com> - 0.62.0
+- Initial package

anda/system/pixi/update.rhai

@@ -0,0 +1 @@
+rpm.version(gh("prefix-dev/pixi"));