diff --git a/packages/s/sdsl-lite/xmake.lua b/packages/s/sdsl-lite/xmake.lua
new file mode 100644
index 00000000000..d69ad8d1d09
--- /dev/null
+++ b/packages/s/sdsl-lite/xmake.lua
@@ -0,0 +1,31 @@
+package("sdsl-lite")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/xxsds/sdsl-lite")
+    set_description("Succinct Data Structure Library 3.0")
+
+    add_urls("https://github.com/xxsds/sdsl-lite/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/xxsds/sdsl-lite.git")
+
+    add_versions("v3.0.3", "7b3281139f7a6c38049e967dcf1ca1d0cc9b65e62153c2ea163d2c8077dd864b")
+
+    add_configs("cereal", {description = "support for serialisation via cereal", default = false, type = "boolean"})
+
+    on_load(function (package)
+        if package:config("cereal") then
+            package:add("deps", "cereal >=1.3.2")
+            package:add("defines", "SDSL_CEREAL=1")
+        end
+    end)
+
+    on_install("linux", "macosx", "bsd", "android", "iphoneos", "cross", function (package)
+        os.cp("include", package:installdir())
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <sdsl/construct.hpp>
+            void test() {
+                sdsl::memory_monitor::start();
+            }
+        ]]}, {configs = {languages = "c++20"}}))
+    end)
diff --git a/packages/s/seqan3/xmake.lua b/packages/s/seqan3/xmake.lua
new file mode 100644
index 00000000000..28c82f879dc
--- /dev/null
+++ b/packages/s/seqan3/xmake.lua
@@ -0,0 +1,49 @@
+package("seqan3")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://www.seqan.de")
+    set_description("The modern C++ library for sequence analysis. Contains version 3 of the library and API docs.")
+    set_license("BSD-3-Clause")
+
+    add_urls("https://github.com/seqan/seqan3/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/seqan/seqan3.git")
+
+    add_versions("3.2.0", "80d41dd035407cfec83eb3a4466d0421adc27129af684290c0c4da31421e7276")
+
+    add_configs("cereal", {description = "required for serialisation and CTD support", default = false, type = "boolean"})
+    add_configs("zlib", {description = "required for *.gz and .bam file support", default = false, type = "boolean"})
+    add_configs("bzip2", {description = "required for *.bz2 file support", default = false, type = "boolean"})
+
+    if is_plat("windows") then
+        add_cxxflags("/Zc:__cplusplus")
+    elseif is_plat("linux") then
+        add_syslinks("pthread")
+    end
+
+    add_deps("sdsl-lite")
+
+    on_load(function (package)
+        if package:config("cereal") then
+            package:add("deps", "cereal >=1.3.1")
+        end
+        if package:config("zlib") then
+            package:add("deps", "zlib >=1.2")
+            package:add("defines", "SEQAN3_HAS_ZLIB=1")
+        end
+        if package:config("bzip2") then
+            package:add("deps", "bzip2 >=1.0")
+            package:add("defines", "SEQAN3_HAS_BZIP2=1")
+        end
+    end)
+
+    on_install("linux", "macosx", "bsd", "android", "iphoneos", "cross", function (package)
+        os.cp("include", package:installdir())
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <seqan3/core/debug_stream.hpp>
+            void test() {
+                seqan3::debug_stream << "Hello World!\n";
+            }
+        ]]}, {configs = {languages = "c++20"}}))
+    end)