diff --git a/.gitignore b/.gitignore
index beabd4b..cfa454c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1 @@
 /nix-2.31.2.tar.gz
-/nix-2.24.15.tar.gz
diff --git a/13995.patch b/13995.patch
new file mode 100644
index 0000000..354ba10
--- /dev/null
+++ b/13995.patch
@@ -0,0 +1,218 @@
+From dd1a554aba720c5f23a529ddc32f1c7127b62af9 Mon Sep 17 00:00:00 2001
+From: Jens Petersen <petersen@redhat.com>
+Date: Mon, 15 Sep 2025 14:38:08 +0800
+Subject: [PATCH] meson: add soversion with nix version to give SONAME to libs
+ (#13960, #13979)
+
+remove 'pre' version suffix for non-releases (chokes Darwin ld)
+---
+ src/libcmd/meson.build                | 1 +
+ src/libexpr-c/meson.build             | 1 +
+ src/libexpr-test-support/meson.build  | 1 +
+ src/libexpr/meson.build               | 1 +
+ src/libfetchers-c/meson.build         | 1 +
+ src/libfetchers/meson.build           | 1 +
+ src/libflake-c/meson.build            | 1 +
+ src/libflake/meson.build              | 1 +
+ src/libmain-c/meson.build             | 1 +
+ src/libmain/meson.build               | 1 +
+ src/libstore-c/meson.build            | 1 +
+ src/libstore-test-support/meson.build | 1 +
+ src/libstore/meson.build              | 1 +
+ src/libutil-c/meson.build             | 1 +
+ src/libutil-test-support/meson.build  | 1 +
+ src/libutil/meson.build               | 1 +
+ 16 files changed, 16 insertions(+)
+
+diff --git a/src/libcmd/meson.build b/src/libcmd/meson.build
+index 24e0752462c..b259182c266 100644
+--- a/src/libcmd/meson.build
++++ b/src/libcmd/meson.build
+@@ -95,6 +95,7 @@ this_library = library(
+   'nixcmd',
+   sources,
+   config_priv_h,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libexpr-c/meson.build b/src/libexpr-c/meson.build
+index 7c014d61d37..95c2c8ac92c 100644
+--- a/src/libexpr-c/meson.build
++++ b/src/libexpr-c/meson.build
+@@ -50,6 +50,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixexprc',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libexpr-test-support/meson.build b/src/libexpr-test-support/meson.build
+index d762eb85e32..1d874320a51 100644
+--- a/src/libexpr-test-support/meson.build
++++ b/src/libexpr-test-support/meson.build
+@@ -44,6 +44,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nix-expr-test-support',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   # TODO: Remove `-lrapidcheck` when https://github.com/emil-e/rapidcheck/pull/326
+diff --git a/src/libexpr/meson.build b/src/libexpr/meson.build
+index 40d3f390b4b..dc43a97420d 100644
+--- a/src/libexpr/meson.build
++++ b/src/libexpr/meson.build
+@@ -181,6 +181,7 @@ this_library = library(
+   parser_tab,
+   lexer_tab,
+   generated_headers,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libfetchers-c/meson.build b/src/libfetchers-c/meson.build
+index 8542744b4da..a381c792af9 100644
+--- a/src/libfetchers-c/meson.build
++++ b/src/libfetchers-c/meson.build
+@@ -53,6 +53,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixfetchersc',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libfetchers/meson.build b/src/libfetchers/meson.build
+index 922a2c49199..e5f5bd19210 100644
+--- a/src/libfetchers/meson.build
++++ b/src/libfetchers/meson.build
+@@ -61,6 +61,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixfetchers',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libflake-c/meson.build b/src/libflake-c/meson.build
+index 933e06d9037..83729178693 100644
+--- a/src/libflake-c/meson.build
++++ b/src/libflake-c/meson.build
+@@ -53,6 +53,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixflakec',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libflake/meson.build b/src/libflake/meson.build
+index 191d8f0680c..a962258e723 100644
+--- a/src/libflake/meson.build
++++ b/src/libflake/meson.build
+@@ -58,6 +58,7 @@ this_library = library(
+   'nixflake',
+   sources,
+   generated_headers,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libmain-c/meson.build b/src/libmain-c/meson.build
+index 9e26ad8adf3..61ec4d54b53 100644
+--- a/src/libmain-c/meson.build
++++ b/src/libmain-c/meson.build
+@@ -45,6 +45,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixmainc',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libmain/meson.build b/src/libmain/meson.build
+index 4a90d2d83b6..d465dd6a40f 100644
+--- a/src/libmain/meson.build
++++ b/src/libmain/meson.build
+@@ -77,6 +77,7 @@ this_library = library(
+   'nixmain',
+   sources,
+   config_priv_h,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libstore-c/meson.build b/src/libstore-c/meson.build
+index f8eaef80395..b73822b0cb7 100644
+--- a/src/libstore-c/meson.build
++++ b/src/libstore-c/meson.build
+@@ -46,6 +46,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixstorec',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libstore-test-support/meson.build b/src/libstore-test-support/meson.build
+index b2977941f86..90fef8489ad 100644
+--- a/src/libstore-test-support/meson.build
++++ b/src/libstore-test-support/meson.build
+@@ -44,6 +44,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nix-store-test-support',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   # TODO: Remove `-lrapidcheck` when https://github.com/emil-e/rapidcheck/pull/326
+diff --git a/src/libstore/meson.build b/src/libstore/meson.build
+index 7aeacbab79b..95dcf08bd0d 100644
+--- a/src/libstore/meson.build
++++ b/src/libstore/meson.build
+@@ -363,6 +363,7 @@ this_library = library(
+   generated_headers,
+   sources,
+   config_priv_h,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libutil-c/meson.build b/src/libutil-c/meson.build
+index 8131c517cd8..b214266a13a 100644
+--- a/src/libutil-c/meson.build
++++ b/src/libutil-c/meson.build
+@@ -53,6 +53,7 @@ this_library = library(
+   'nixutilc',
+   sources,
+   config_priv_h,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libutil-test-support/meson.build b/src/libutil-test-support/meson.build
+index 910f1d88164..da2b443ec54 100644
+--- a/src/libutil-test-support/meson.build
++++ b/src/libutil-test-support/meson.build
+@@ -41,6 +41,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nix-util-test-support',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   # TODO: Remove `-lrapidcheck` when https://github.com/emil-e/rapidcheck/pull/326
+diff --git a/src/libutil/meson.build b/src/libutil/meson.build
+index cdffc892ae7..ff8b042c7ec 100644
+--- a/src/libutil/meson.build
++++ b/src/libutil/meson.build
+@@ -197,6 +197,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixutil',
+   sources,
++  soversion : meson.project_version().replace('pre', ''),
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
diff --git a/14001.patch b/14001.patch
new file mode 100644
index 0000000..456aff4
--- /dev/null
+++ b/14001.patch
@@ -0,0 +1,246 @@
+From 86bb7c958a4ed46411da74a4498581a0cdc454a0 Mon Sep 17 00:00:00 2001
+From: Jens Petersen <petersen@redhat.com>
+Date: Tue, 16 Sep 2025 12:54:30 +0800
+Subject: [PATCH] meson: refactor nix_soversion into
+ nix-meson-build-support/common
+
+This is a follow-on to #13995 which added soversion to the libraries
+---
+ nix-meson-build-support/common/meson.build | 3 +++
+ src/libcmd/meson.build                     | 2 +-
+ src/libexpr-c/meson.build                  | 2 +-
+ src/libexpr-test-support/meson.build       | 2 +-
+ src/libexpr/meson.build                    | 2 +-
+ src/libfetchers-c/meson.build              | 2 +-
+ src/libfetchers/meson.build                | 2 +-
+ src/libflake-c/meson.build                 | 2 +-
+ src/libflake/meson.build                   | 2 +-
+ src/libmain-c/meson.build                  | 2 +-
+ src/libmain/meson.build                    | 2 +-
+ src/libstore-c/meson.build                 | 2 +-
+ src/libstore-test-support/meson.build      | 2 +-
+ src/libstore/meson.build                   | 2 +-
+ src/libutil-c/meson.build                  | 2 +-
+ src/libutil-test-support/meson.build       | 2 +-
+ src/libutil/meson.build                    | 2 +-
+ 17 files changed, 19 insertions(+), 16 deletions(-)
+
+diff --git a/nix-meson-build-support/common/meson.build b/nix-meson-build-support/common/meson.build
+index fd686f1407f..5a29ff61d94 100644
+--- a/nix-meson-build-support/common/meson.build
++++ b/nix-meson-build-support/common/meson.build
+@@ -40,3 +40,6 @@ if cxx.get_id() == 'clang' and ('address' in get_option('b_sanitize') or 'undefi
+ ))
+   add_project_link_arguments('-shared-libasan', language : 'cpp')
+ endif
++
++# Darwin ld doesn't like "X.Y.Zpre"
++nix_soversion = meson.project_version().strip('pre')
+diff --git a/src/libcmd/meson.build b/src/libcmd/meson.build
+index b259182c266..f553afa0ba1 100644
+--- a/src/libcmd/meson.build
++++ b/src/libcmd/meson.build
+@@ -95,7 +95,7 @@ this_library = library(
+   'nixcmd',
+   sources,
+   config_priv_h,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libexpr-c/meson.build b/src/libexpr-c/meson.build
+index 95c2c8ac92c..c47704ce411 100644
+--- a/src/libexpr-c/meson.build
++++ b/src/libexpr-c/meson.build
+@@ -50,7 +50,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixexprc',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libexpr-test-support/meson.build b/src/libexpr-test-support/meson.build
+index 1d874320a51..df28661b7e7 100644
+--- a/src/libexpr-test-support/meson.build
++++ b/src/libexpr-test-support/meson.build
+@@ -44,7 +44,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nix-expr-test-support',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   # TODO: Remove `-lrapidcheck` when https://github.com/emil-e/rapidcheck/pull/326
+diff --git a/src/libexpr/meson.build b/src/libexpr/meson.build
+index dc43a97420d..55a36c1bd58 100644
+--- a/src/libexpr/meson.build
++++ b/src/libexpr/meson.build
+@@ -181,7 +181,7 @@ this_library = library(
+   parser_tab,
+   lexer_tab,
+   generated_headers,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libfetchers-c/meson.build b/src/libfetchers-c/meson.build
+index a381c792af9..db415d9173e 100644
+--- a/src/libfetchers-c/meson.build
++++ b/src/libfetchers-c/meson.build
+@@ -53,7 +53,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixfetchersc',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libfetchers/meson.build b/src/libfetchers/meson.build
+index e5f5bd19210..792a0fdbf41 100644
+--- a/src/libfetchers/meson.build
++++ b/src/libfetchers/meson.build
+@@ -61,7 +61,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixfetchers',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libflake-c/meson.build b/src/libflake-c/meson.build
+index 83729178693..fddb39bdf96 100644
+--- a/src/libflake-c/meson.build
++++ b/src/libflake-c/meson.build
+@@ -53,7 +53,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixflakec',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libflake/meson.build b/src/libflake/meson.build
+index a962258e723..58916ecd9ab 100644
+--- a/src/libflake/meson.build
++++ b/src/libflake/meson.build
+@@ -58,7 +58,7 @@ this_library = library(
+   'nixflake',
+   sources,
+   generated_headers,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libmain-c/meson.build b/src/libmain-c/meson.build
+index 61ec4d54b53..36332fdb70a 100644
+--- a/src/libmain-c/meson.build
++++ b/src/libmain-c/meson.build
+@@ -45,7 +45,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixmainc',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libmain/meson.build b/src/libmain/meson.build
+index d465dd6a40f..2ac59924e59 100644
+--- a/src/libmain/meson.build
++++ b/src/libmain/meson.build
+@@ -77,7 +77,7 @@ this_library = library(
+   'nixmain',
+   sources,
+   config_priv_h,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libstore-c/meson.build b/src/libstore-c/meson.build
+index b73822b0cb7..c6b6174c775 100644
+--- a/src/libstore-c/meson.build
++++ b/src/libstore-c/meson.build
+@@ -46,7 +46,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixstorec',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libstore-test-support/meson.build b/src/libstore-test-support/meson.build
+index 90fef8489ad..5873680eae2 100644
+--- a/src/libstore-test-support/meson.build
++++ b/src/libstore-test-support/meson.build
+@@ -44,7 +44,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nix-store-test-support',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   # TODO: Remove `-lrapidcheck` when https://github.com/emil-e/rapidcheck/pull/326
+diff --git a/src/libstore/meson.build b/src/libstore/meson.build
+index 95dcf08bd0d..556616181ae 100644
+--- a/src/libstore/meson.build
++++ b/src/libstore/meson.build
+@@ -363,7 +363,7 @@ this_library = library(
+   generated_headers,
+   sources,
+   config_priv_h,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libutil-c/meson.build b/src/libutil-c/meson.build
+index b214266a13a..1806dbb6f9a 100644
+--- a/src/libutil-c/meson.build
++++ b/src/libutil-c/meson.build
+@@ -53,7 +53,7 @@ this_library = library(
+   'nixutilc',
+   sources,
+   config_priv_h,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
+diff --git a/src/libutil-test-support/meson.build b/src/libutil-test-support/meson.build
+index da2b443ec54..64231107eb6 100644
+--- a/src/libutil-test-support/meson.build
++++ b/src/libutil-test-support/meson.build
+@@ -41,7 +41,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nix-util-test-support',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   # TODO: Remove `-lrapidcheck` when https://github.com/emil-e/rapidcheck/pull/326
+diff --git a/src/libutil/meson.build b/src/libutil/meson.build
+index ff8b042c7ec..f4b8dbb613b 100644
+--- a/src/libutil/meson.build
++++ b/src/libutil/meson.build
+@@ -197,7 +197,7 @@ subdir('nix-meson-build-support/windows-version')
+ this_library = library(
+   'nixutil',
+   sources,
+-  soversion : meson.project_version().replace('pre', ''),
++  soversion : nix_soversion,
+   dependencies : deps_public + deps_private + deps_other,
+   include_directories : include_dirs,
+   link_args : linker_export_flags,
diff --git a/14005.patch b/14005.patch
new file mode 100644
index 0000000..768a732
--- /dev/null
+++ b/14005.patch
@@ -0,0 +1,23 @@
+From ca23c819e0492272a695f3f87467a05c152ac77d Mon Sep 17 00:00:00 2001
+From: Jens Petersen <petersen@redhat.com>
+Date: Tue, 16 Sep 2025 18:31:40 +0800
+Subject: [PATCH] nix-meson-build-support/common nix_soversion: fixup removal
+ of 'pre'
+
+.strip() removes individual chars whereas .replace() affects whole substring
+
+Thanks @keszybz
+---
+ nix-meson-build-support/common/meson.build | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/nix-meson-build-support/common/meson.build b/nix-meson-build-support/common/meson.build
+index 5a29ff61d94..a46715193c6 100644
+--- a/nix-meson-build-support/common/meson.build
++++ b/nix-meson-build-support/common/meson.build
+@@ -42,4 +42,4 @@ if cxx.get_id() == 'clang' and ('address' in get_option('b_sanitize') or 'undefi
+ endif
+ 
+ # Darwin ld doesn't like "X.Y.Zpre"
+-nix_soversion = meson.project_version().strip('pre')
++nix_soversion = meson.project_version().replace('pre', '')
diff --git a/14018.patch b/14018.patch
new file mode 100644
index 0000000..8ae9278
--- /dev/null
+++ b/14018.patch
@@ -0,0 +1,24 @@
+From 7dbfe9f5761662efdd7de8c00d940749af276240 Mon Sep 17 00:00:00 2001
+From: Sergei Zimmerman <sergei@zimmerman.foo>
+Date: Thu, 18 Sep 2025 23:34:27 +0300
+Subject: [PATCH] meson: Fix SONAME for unstable versions
+
+Replacing the string is not enough [^] for e.g. nixpkgs precise versions:
+
+`2.31pre20250712_b1245123`
+
+[^]: https://github.com/NixOS/nixpkgs/pull/444089
+---
+ nix-meson-build-support/common/meson.build | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/nix-meson-build-support/common/meson.build b/nix-meson-build-support/common/meson.build
+index a46715193c6..f08fb3d8439 100644
+--- a/nix-meson-build-support/common/meson.build
++++ b/nix-meson-build-support/common/meson.build
+@@ -42,4 +42,4 @@ if cxx.get_id() == 'clang' and ('address' in get_option('b_sanitize') or 'undefi
+ endif
+ 
+ # Darwin ld doesn't like "X.Y.Zpre"
+-nix_soversion = meson.project_version().replace('pre', '')
++nix_soversion = meson.project_version().split('pre')[0]
diff --git a/14593.patch b/14593.patch
new file mode 100644
index 0000000..e406e61
--- /dev/null
+++ b/14593.patch
@@ -0,0 +1,61 @@
+From ef6dbe76dc25e67b47dc9a8caa6dd29ff5996a20 Mon Sep 17 00:00:00 2001
+From: Jens Petersen <petersen@redhat.com>
+Date: Wed, 19 Nov 2025 15:50:43 +0800
+Subject: [PATCH] docs: fixup some rellinks to use ./ prefix for consistency
+
+"./" prefix is already used almost everywhere
+---
+ doc/manual/source/command-ref/nix-build.md       | 6 +++---
+ doc/manual/source/command-ref/nix-instantiate.md | 2 +-
+ src/nix/profile-diff-closures.md                 | 2 +-
+ 3 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/doc/manual/source/command-ref/nix-build.md b/doc/manual/source/command-ref/nix-build.md
+index 3bb59cbed12..860a1fc9745 100644
+--- a/doc/manual/source/command-ref/nix-build.md
++++ b/doc/manual/source/command-ref/nix-build.md
+@@ -36,7 +36,7 @@ to a temporary location. The tarball must include a single top-level
+ directory containing at least a file named `default.nix`.
+ 
+ `nix-build` is essentially a wrapper around
+-[`nix-instantiate`](nix-instantiate.md) (to translate a high-level Nix
++[`nix-instantiate`](./nix-instantiate.md) (to translate a high-level Nix
+ expression to a low-level [store derivation]) and [`nix-store
+ --realise`](@docroot@/command-ref/nix-store/realise.md) (to build the store
+ derivation).
+@@ -52,8 +52,8 @@ derivation).
+ # Options
+ 
+ All options not listed here are passed to
+-[`nix-store --realise`](nix-store/realise.md),
+-except for `--arg` and `--attr` / `-A` which are passed to [`nix-instantiate`](nix-instantiate.md).
++[`nix-store --realise`](./nix-store/realise.md),
++except for `--arg` and `--attr` / `-A` which are passed to [`nix-instantiate`](./nix-instantiate.md).
+ 
+ - <span id="opt-no-out-link">[`--no-out-link`](#opt-no-out-link)<span>
+ 
+diff --git a/doc/manual/source/command-ref/nix-instantiate.md b/doc/manual/source/command-ref/nix-instantiate.md
+index 38454515d57..bac9f365933 100644
+--- a/doc/manual/source/command-ref/nix-instantiate.md
++++ b/doc/manual/source/command-ref/nix-instantiate.md
+@@ -32,7 +32,7 @@ standard input.
+ 
+ - `--add-root` *path*
+ 
+-  See the [corresponding option](nix-store.md) in `nix-store`.
++  See the [corresponding option](./nix-store.md) in `nix-store`.
+ 
+ - `--parse`
+ 
+diff --git a/src/nix/profile-diff-closures.md b/src/nix/profile-diff-closures.md
+index 295d1252bcd..1cfed160f31 100644
+--- a/src/nix/profile-diff-closures.md
++++ b/src/nix/profile-diff-closures.md
+@@ -23,6 +23,6 @@ R""(
+ 
+ This command shows the difference between the closures of subsequent
+ versions of a profile. See [`nix store
+-diff-closures`](nix3-store-diff-closures.md) for details.
++diff-closures`](./nix3-store-diff-closures.md) for details.
+ 
+ )""
diff --git a/changelog b/changelog
new file mode 100644
index 0000000..e5e06d1
--- /dev/null
+++ b/changelog
@@ -0,0 +1,68 @@
+* Mon Oct 27 2025 Jens Petersen <petersen@redhat.com> - 2.31.2-8
+- drop redundant sysusers and tmpfiles.d scriptlets (#2388768)
+- add obsoletes for petersen/nix copr subpackages
+
+* Sat Oct 25 2025 Jens Petersen <petersen@redhat.com> - 2.31.2-7
+- recommends nix-daemon if systemd
+
+* Sat Oct 25 2025 Jens Petersen <petersen@redhat.com> - 2.31.2-6
+- rename users subpackage to system
+- improve /nix/var dirs ownership and perms
+- rename sysusers file to nix.conf
+- move nix-daemon tmpfiles.d to nix-daemon
+
+* Sat Oct 25 2025 Jens Petersen <petersen@redhat.com> - 2.31.2-5
+- split nix-users from nix-daemon and drop nix-singleuser
+- drop all conflicts
+
+* Fri Oct 24 2025 Jens Petersen <petersen@redhat.com> - 2.31.2-4
+- drop filesystem subpackage and ghost singleuser dirs
+- nix-daemon and nix-singleuser conflict with each other
+
+* Thu Oct 23 2025 Jens Petersen <petersen@redhat.com> - 2.31.2-3
+- use tmpfiles.d for nix-filesystem
+- improve the readme
+- list bin files explicitly
+- nix-singleuser now owns its dirs
+- add nix-daemon conflicts for ostree and containers
+- add nix-singleuser recommends for containers
+
+* Sat Oct 18 2025 Jens Petersen <petersen@redhat.com> - 2.31.2-2
+- FHS Exception for /nix was approved (https://pagure.io/fesco/issue/3473)
+- add multiuser setup to daemon subpackage
+- add singleuser and nix-filesystem subpackages
+
+* Mon Sep 22 2025 Jens Petersen <petersen@redhat.com> - 2.31.2-1
+- update to 2.31.2
+
+* Wed Sep 17 2025 Jens Petersen <petersen@redhat.com> - 2.31.1-6
+- list .so files explicitly without globbing (#2388768)
+- disable /usr/lib/tmpfiles.d/nix-daemon.conf for now (#2388768)
+
+* Mon Sep 15 2025 Jens Petersen <petersen@redhat.com> - 2.31.1-5
+- set the soversion to the nix version (#13995, #14001, #14005)
+
+* Sun Sep 14 2025 Jens Petersen <petersen@redhat.com> - 2.31.1-4
+- add simple check with LD_LIBRARY_PATH
+
+* Fri Sep 12 2025 Jens Petersen <petersen@redhat.com> - 2.31.1-3
+- revert to shared libs, add libs subpackage and restore devel
+- apply upstream submitted PR to enable soname versioning (#13966)
+
+* Thu Sep 11 2025 Jens Petersen <petersen@redhat.com> - 2.31.1-2
+- noarch nix-daemon subpackage cannot use _isa requires
+
+* Wed Sep 10 2025 Jens Petersen <petersen@redhat.com> - 2.31.1-1
+- https://github.com/NixOS/nix/blob/2.31.1/doc/manual/source/release-notes/rl-2.31.md
+- rename nix-core to base package
+- use readline (#2388768)
+- improve MESON_OPTS setup (zbyszek, #2388768)
+- use static libs and drop devel package
+- disable perl binding
+
+* Sat Aug 16 2025 Jens Petersen <petersen@redhat.com> - 2.30.2-2
+- fix nix-devel requires
+- add systemd scriptlets for nix-daemon
+
+* Fri Aug 15 2025 Jens Petersen <petersen@redhat.com> - 2.30.2-1
+- initial packaging of nix programs without /nix
diff --git a/examples/flake/flake.nix b/examples/flake/flake.nix
index e7e63c1..8f8c3f9 100644
--- a/examples/flake/flake.nix
+++ b/examples/flake/flake.nix
@@ -1,20 +1,13 @@
 {
-  description = "A basic dev shell for a single system.";
-
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
-  };
-
-  outputs = { self, nixpkgs, builtins }:
-    let
-      # or hardcode "x86_64-linux"
-      system =  builtins.currentSystem;
-      pkgs = import nixpkgs { inherit system; };
-    in
-    {
-      devShells.${system}.default = pkgs.mkShell {
-        packages = with pkgs; [ hello ];
-      };
-    };
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          packages = with pkgs; [ hello ];
+        };
+      });
 }
 # Run with: nix develop
diff --git a/nix-disable-mdbook.patch b/nix-disable-mdbook.patch
new file mode 100644
index 0000000..1453525
--- /dev/null
+++ b/nix-disable-mdbook.patch
@@ -0,0 +1,46 @@
+--- nix-2.31.2/doc/manual/meson.build~	2025-09-18 04:25:38.000000000 +0800
++++ nix-2.31.2/doc/manual/meson.build	2025-11-13 00:26:04.673032194 +0800
+@@ -7,7 +7,7 @@
+ 
+ nix = find_program('nix', native : true)
+ 
+-mdbook = find_program('mdbook', native : true)
++# mdbook = find_program('mdbook', native : true)
+ bash = find_program('bash', native : true)
+ rsync = find_program('rsync', required : true, native : true)
+ 
+@@ -89,13 +89,12 @@
+-        @0@ @INPUT1@ summary @2@ < @CURRENT_SOURCE_DIR@/source/SUMMARY.md.in > @2@/source/SUMMARY.md
+-        sed -e 's|@version@|@3@|g' < @INPUT2@ > @2@/book.toml
+         @4@ -r --include='*.md' @CURRENT_SOURCE_DIR@/ @2@/
+-        (cd @2@; RUST_LOG=warn @1@ build -d @2@ 3>&2 2>&1 1>&3) | { grep -Fv "because fragment resolution isn't implemented" || :; } 3>&2 2>&1 1>&3
+-        rm -rf @2@/manual
+-        mv @2@/html @2@/manual
+-        find @2@/manual -iname meson.build -delete
++        # (cd @2@; RUST_LOG=warn @1@ build -d @2@ 3>&2 2>&1 1>&3) | { grep -Fv "because fragment resolution isn't implemented" || :; } 3>&2 2>&1 1>&3
++        #rm -rf @2@/manual
++        #mv @2@/html @2@/manual
++        #find @2@/manual -iname meson.build -delete
++        ln -s source @2@/markdown
+     '''.format(
+       python.full_path(),
+-      mdbook.full_path(),
++      'no-mdbk',
+       meson.current_build_dir(),
+       meson.project_version(),
+       rsync.full_path(),
+@@ -130,10 +130,10 @@
+ manual_html = manual[0]
+ manual_md = manual[1]
+ 
+-install_subdir(
+-  manual_html.full_path(),
+-  install_dir : get_option('datadir') / 'doc/nix',
+-)
++# install_subdir(
++#   manual_html.full_path(),
++#   install_dir : get_option('datadir') / 'doc/nix',
++# )
+ 
+ nix_nested_manpages = [
+   [
diff --git a/nix-manual-disable.patch b/nix-manual-disable.patch
deleted file mode 100644
index f18b17d..0000000
--- a/nix-manual-disable.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- nix-2.24.15/doc/manual/local.mk~	2025-06-24 22:08:50.000000000 +0800
-+++ nix-2.24.15/doc/manual/local.mk	2025-11-28 23:39:25.782547420 +0800
-@@ -179,7 +179,7 @@
- 		echo "Could not open the manual in a browser. Please open '$<'" >&2; \
- 		false; \
- 		}
--install: $(docdir)/manual/index.html
-+# install: $(docdir)/manual/index.html
- 
- # Generate 'nix' manpages.
- .PHONY: manpages
diff --git a/nix.conf b/nix.conf
index 723bbe4..fd3e6cc 100644
--- a/nix.conf
+++ b/nix.conf
@@ -5,4 +5,3 @@ bash-prompt-prefix = (nix:$name)\040
 experimental-features = nix-command flakes
 extra-nix-path = nixpkgs=flake:nixpkgs
 max-jobs = auto
-system = @ARCH@-linux
diff --git a/nix.spec b/nix.spec
index f8afdea..0be06a0 100644
--- a/nix.spec
+++ b/nix.spec
@@ -1,15 +1,16 @@
 %global nixbld_group nixbld
 
-# we patch out manual below (needs mdbook)
+# needs mdbook: https://bugzilla.redhat.com/show_bug.cgi?id=2332609
 %bcond docs 1
 # test failures complain NIX_STORE undefined
 # and missing rapidcheck
 %bcond tests 0
 
 Name:           nix
-# 2.25 needs libgit2-1.9
-Version:        2.24.15
-Release:        1%{?dist}
+# 2.32 needs boost >= 1.87 (https://bugzilla.redhat.com/show_bug.cgi?id=2406036)
+# (https://github.com/NixOS/nix/pull/14340)
+Version:        2.31.2
+Release:        %autorelease
 Summary:        A purely functional package manager
 
 License:        LGPL-2.1-or-later
@@ -20,24 +21,39 @@ Source2:        registry.json
 Source3:        README.md
 Source4:        nix.sysusers
 Source5:        nix-filesystem.conf
-Patch0:         nix-manual-disable.patch
+# soversion patches:
+# https://github.com/NixOS/nix/pull/13995
+Patch0:         https://patch-diff.githubusercontent.com/raw/NixOS/nix/pull/13995.patch
+# https://github.com/NixOS/nix/pull/14001
+Patch1:         https://patch-diff.githubusercontent.com/raw/NixOS/nix/pull/14001.patch
+# https://github.com/NixOS/nix/pull/14005
+Patch2:         https://patch-diff.githubusercontent.com/raw/NixOS/nix/pull/14005.patch
+# https://github.com/NixOS/nix/pull/14018
+Patch3:         https://patch-diff.githubusercontent.com/raw/NixOS/nix/pull/14018.patch
+# disable mdbook
+# https://github.com/NixOS/nix/issues/14548
+Patch4:         nix-disable-mdbook.patch
+# https://github.com/NixOS/nix/pull/14593
+Patch5:         https://patch-diff.githubusercontent.com/raw/NixOS/nix/pull/14593.patch
 
 # https://nixos.org/manual/nix/unstable/installation/prerequisites-source
 # missing aws-cpp-sdk-s3 aws-c-auth aws-c-s3
 #BuildRequires:  aws-c-common
-BuildRequires:  autoconf-archive
-BuildRequires:  automake
 BuildRequires:  bison
 BuildRequires:  blake3-devel
 BuildRequires:  bzip2-devel
 BuildRequires:  boost-devel
+BuildRequires:  boost-url
 BuildRequires:  brotli-devel
-# %%ifarch x86_64 aarch64 ppc64le
-# BuildRequires:  busybox
-# %%endif
+%ifarch x86_64 aarch64 ppc64le
+BuildRequires:  busybox
+%endif
 # needed for toml11
-BuildRequires:  chrpath
 BuildRequires:  cmake
+%if %{with docs}
+BuildRequires:  doxygen
+BuildRequires:  rsync
+%endif
 BuildRequires:  flex
 BuildRequires:  gc-devel
 BuildRequires:  gcc-c++
@@ -58,8 +74,7 @@ BuildRequires:  libseccomp-devel
 BuildRequires:  libsodium-devel
 BuildRequires:  lowdown
 BuildRequires:  lowdown-devel
-BuildRequires:  make
-BuildRequires:  man-db
+BuildRequires:  meson
 BuildRequires:  openssl-devel
 %if %{with tests}
 #BuildRequires:  rapidcheck-devel
@@ -88,8 +103,9 @@ See the README.fedora.md file for setup instructions.
 
 %package        core
 Summary:        Core nix tool
+Requires:       nix-libs%{?_isa} = %{version}-%{release}
 %ifarch x86_64 aarch64 ppc64le
-#Recommends:     busybox
+Recommends:     busybox
 %endif
 
 %description    core
@@ -114,7 +130,7 @@ This package provides nix-daemon and associated files.
 
 %package devel
 Summary:        Development files for nix
-Requires:       nix%{?_isa} = %{version}-%{release}
+Requires:       nix-libs%{?_isa} = %{version}-%{release}
 
 %description devel
 This package contains library and header files for
@@ -123,16 +139,28 @@ developing applications that use nix.
 Note the API is considered unstable and upstream does not recommend its usage.
 
 
+%if %{with docs}
+%package doc
+Summary:        Documentation files for nix
+BuildArch:      noarch
+
+%description doc
+This package contains documentation files for nix.
+%endif
+
+
 %package        filesystem
 Summary:        Filesystem for nix
 BuildArch:      noarch
+# added at f43
+Obsoletes:      nix-singleuser < %{version}-%{release}
 
 %description    filesystem
 The package provides the /nix root directory for the nix package manager.
 
 
 %package        legacy
-Summary:        Nix classical commands
+Summary:        nix classical commands
 BuildArch:      noarch
 Requires:       nix-core = %{version}-%{release}
 
@@ -140,6 +168,13 @@ Requires:       nix-core = %{version}-%{release}
 This package provides the symlinks for the older nix-* commands.
 
 
+%package libs
+Summary:        Runtime libraries for nix
+
+%description libs
+The package provides the the runtime libraries for nix.
+
+
 %if %{with tests}
 %package test
 Summary:        Nix test programs
@@ -164,25 +199,42 @@ This package sets up the nix directories and sysusers.
 
 install -p -m 0644 %{SOURCE3} README.fedora.md
 
+# https://github.com/NixOS/nix/issues/14666
+# remove unicode RLO (0x202E) characters
+sed -i 's/\xe2\x80\xae//g' doc/manual/source/release-notes/rl-2.26.md
+
 
 %build
-autoreconf -i
-# epel10 does not have libcpuid: https://bugzilla.redhat.com/show_bug.cgi?id=2368495
-%configure --localstatedir=/nix/var --docdir=%{_defaultdocdir}/%{name}-doc-%{version} --disable-unit-tests --with-readline-flavor=readline --disable-cpuid %{!?with_docs:--disable-doc-gen}
-make %{?_smp_mflags}
+MESON_OPTS=(
+    --sysconfdir=%{_sysconfdir}
+    --localstatedir=/nix/var
+    --libexecdir=%{_libexecdir}
+    -Dbindings=false
+    -Ddoc-gen=%[%{with docs}?"true":"false"]
+    -Dlibcmd:readline-flavor=readline
+    -Dlibstore:sandbox-shell=%{_bindir}/busybox
+    -Dnix:profile-dir=%{_sysconfdir}/profile.d
+    -Dunit-tests=%[%{with tests}?"true":"false"]
+%ifarch x86_64
+# missing from epel10: https://bugzilla.redhat.com/show_bug.cgi?id=2368495
+%if %{undefined fedora}
+    -Dlibutil:cpuid=disabled
+%endif
+%else
+    -Dlibutil:cpuid=disabled
+%endif
+    )
+
+%meson "${MESON_OPTS[@]}"
+%meson_build
 
 
 %install
-make DESTDIR=%{buildroot} install
-
-find %{buildroot} -name '*.la' -exec rm -f {} ';'
+%meson_install
 
 # nix config
 mkdir -p %{buildroot}/etc/nix
-# for older nix to avoid "error: system string 'linux' with 1 component is ambiguous"
-cat %{SOURCE1} | sed -e "s/@ARCH@/%{_arch}/" > %{buildroot}/etc/nix/nix.conf
-cp %{SOURCE2} %{buildroot}/etc/nix/
-
+cp %{SOURCE1} %{SOURCE2} %{buildroot}/etc/nix/
 
 # Nix has multiuser and singleuser installation modes
 # https://nix.dev/manual/nix/stable/installation/nix-security.html
@@ -194,15 +246,11 @@ mkdir -p %{buildroot}/nix/var/nix
 install -p -D -m 0644 %{SOURCE4} %{buildroot}%{_sysusersdir}/nix.conf
 install -p -D -m 0644 %{SOURCE5} %{buildroot}%{_tmpfilesdir}/nix-filesystem.conf
 
-# replace absolute symlink
-ln -sf ../../bin/nix %{buildroot}%{_libexecdir}/nix/build-remote
-
-rm %{buildroot}%{_sysconfdir}/init/nix-daemon.conf
-rm %{buildroot}%{_mandir}/man1/nix3-manpages
-
-( cd %{buildroot}%{_libdir}
-  chrpath --delete ../bin/nix libnixcmd.so libnixexpr.so libnixexprc.so libnixfetchers.so libnixflake.so libnixmain.so libnixstore.so libnixstorec.so libnixutilc.so
-)
+# filter out relative doc links
+# https://bugzilla.redhat.com/show_bug.cgi?id=2415126
+# https://github.com/kristapsdz/lowdown/issues/170
+# (sed expression generated by Gemini Pro: removes pairs of .UR and .UE lines)
+sed -i -e '/^\.UR [@#.]/,/^\.UE/{ /^\.UR [@#.]/d; /^\.UE/d}' %{buildroot}%{_mandir}/man*/*
 
 
 %check
@@ -225,31 +273,12 @@ LD_LIBRARY_PATH=%{buildroot}%{_libdir} %{buildroot}%{_bindir}/nix --help
 %systemd_postun_with_restart nix-daemon.service
 
 
-%pre filesystem
-%tmpfiles_create_package nix-filesystem %SOURCE5
-
-
-%pre system
-%sysusers_create_package nix-system %SOURCE4
-
-
 %files
 
 
 %files core
 %doc README.md README.fedora.md
 %{_bindir}/nix
-%{_libdir}/libnixcmd.so
-%{_libdir}/libnixexpr.so
-%{_libdir}/libnixexprc.so
-%{_libdir}/libnixfetchers.so
-%{_libdir}/libnixflake.so
-%{_libdir}/libnixmain.so
-# %%{_libdir}/libnixmainc.so
-%{_libdir}/libnixstore.so
-%{_libdir}/libnixstorec.so
-%{_libdir}/libnixutil.so
-%{_libdir}/libnixutilc.so
 %{_libexecdir}/nix
 %config(noreplace) %{_sysconfdir}/nix/nix.conf
 %config(noreplace) %{_sysconfdir}/nix/registry.json
@@ -282,9 +311,30 @@ LD_LIBRARY_PATH=%{buildroot}%{_libdir} %{buildroot}%{_bindir}/nix --help
 
 %files devel
 %{_includedir}/nix
+%{_includedir}/nix_api_*.h
+%{_includedir}/nix_api_*.hh
+%{_libdir}/libnixcmd.so
+%{_libdir}/libnixexpr.so
+%{_libdir}/libnixexprc.so
+%{_libdir}/libnixfetchers.so
+%{_libdir}/libnixfetchersc.so
+%{_libdir}/libnixflake.so
+%{_libdir}/libnixflakec.so
+%{_libdir}/libnixmain.so
+%{_libdir}/libnixmainc.so
+%{_libdir}/libnixstore.so
+%{_libdir}/libnixstorec.so
+%{_libdir}/libnixutil.so
+%{_libdir}/libnixutilc.so
 %{_libdir}/pkgconfig/*.pc
 
 
+%if %{with docs}
+%files doc
+%{_defaultdocdir}/nix
+%endif
+
+
 %files filesystem
 # FHS Exception: https://pagure.io/fesco/issue/3473
 %{_tmpfilesdir}/nix-filesystem.conf
@@ -310,6 +360,23 @@ LD_LIBRARY_PATH=%{buildroot}%{_libdir} %{buildroot}%{_bindir}/nix --help
 %endif
 
 
+%files libs
+%license COPYING
+%{_libdir}/libnixcmd.so.%{version}
+%{_libdir}/libnixexpr.so.%{version}
+%{_libdir}/libnixexprc.so.%{version}
+%{_libdir}/libnixfetchers.so.%{version}
+%{_libdir}/libnixfetchersc.so.%{version}
+%{_libdir}/libnixflake.so.%{version}
+%{_libdir}/libnixflakec.so.%{version}
+%{_libdir}/libnixmain.so.%{version}
+%{_libdir}/libnixmainc.so.%{version}
+%{_libdir}/libnixstore.so.%{version}
+%{_libdir}/libnixstorec.so.%{version}
+%{_libdir}/libnixutil.so.%{version}
+%{_libdir}/libnixutilc.so.%{version}
+
+
 %files system
 %{_sysusersdir}/nix.conf
 %dir %attr(1775,root,%{nixbld_group}) /nix/store
@@ -333,5 +400,4 @@ LD_LIBRARY_PATH=%{buildroot}%{_libdir} %{buildroot}%{_bindir}/nix --help
 
 
 %changelog
-* Wed Nov 26 2025 Jens Petersen <petersen@redhat.com> - 2.24.15-1
-- initial epel10 package
+%autochangelog
diff --git a/sources b/sources
index 1bd2674..5485fe4 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (nix-2.24.15.tar.gz) = d731b8dee5cd43670c117922c2d550fc8ba42791072928839fbcb81c7ef5d7b4908d02c0daf91ad923ee1e32030c9f319b1fccec3ae1027682770fccb9b79b88
+SHA512 (nix-2.31.2.tar.gz) = ba2aa53cfb2527c7702340ac862a427a07d4a7bac8149cfc24d34ce2e0f980a8e70103e1ddf1c231cb5cd0bf4ddfe56a6fa618cd561501a03b8b064cea84bfcf