diff --git a/recipes/recipes_emscripten/bliss/build.sh b/recipes/recipes_emscripten/bliss/build.sh
new file mode 100644
index 00000000000..3492d0ca3cb
--- /dev/null
+++ b/recipes/recipes_emscripten/bliss/build.sh
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -euxo pipefail
+
+export CFLAGS="-I$PREFIX/include $(echo "${CFLAGS:-}" | sed -E 's/-march=[^ ]+//g; s/-mtune=[^ ]+//g')"
+export CXXFLAGS="-I$PREFIX/include $(echo "${CXXFLAGS:-}" | sed -E 's/-march=[^ ]+//g; s/-mtune=[^ ]+//g')"
+export LDFLAGS="-L$PREFIX/lib ${LDFLAGS:-}"
+
+emcmake cmake -S . -B build \
+    -DCMAKE_INSTALL_PREFIX=$PREFIX \
+    -DCMAKE_PREFIX_PATH=$PREFIX \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DUSE_GMP=ON \
+    -DGMP_LIBRARIES=$PREFIX/lib/libgmp.a \
+    -DBUILD_SHARED_LIBS=OFF
+
+cd build
+emmake make -j${CPU_COUNT:-1}
+
+mkdir -p $PREFIX/lib
+mkdir -p $PREFIX/include/bliss
+mkdir -p $PREFIX/bin
+
+cp libbliss.a $PREFIX/lib/
+cp libbliss_static.a $PREFIX/lib/ || true
+
+cp ../src/*.hh $PREFIX/include/bliss/
+
+cp bliss.js $PREFIX/bin/
+cp bliss.wasm $PREFIX/bin/
\ No newline at end of file
diff --git a/recipes/recipes_emscripten/bliss/recipe.yaml b/recipes/recipes_emscripten/bliss/recipe.yaml
new file mode 100644
index 00000000000..41607014c06
--- /dev/null
+++ b/recipes/recipes_emscripten/bliss/recipe.yaml
@@ -0,0 +1,44 @@
+context:
+  name: bliss
+  version: '0.77'
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+
+source:
+  url: https://users.aalto.fi/~tjunttil/bliss/downloads/bliss-${{ version }}.zip
+  sha256: acc8b98034f30fad24c897f365abd866c13d9f1bb207e398d0caf136875972a4
+
+build:
+  number: 0
+
+requirements:
+  build:
+  - autoconf
+  - automake
+  - libtool
+  - make
+  - ${{ compiler("c") }}
+  - ${{ compiler('cxx') }}
+  - pkg-config
+  - autoconf-archive
+  host:
+  - gmp
+
+tests:
+  - package_contents:
+      files:
+        - bin/bliss.js
+        - lib/libbliss.a
+        - include/bliss/graph.hh
+
+about:
+  license: LGPL-3.0-only AND GPL-3.0-only
+  license_file: COPYING
+  summary: Combinatorial matrix recognition
+  homepage: https://users.aalto.fi/~tjunttil/bliss/index.html
+
+extra:
+  recipe-maintainers:
+  - wangyenshu
diff --git a/recipes/recipes_emscripten/eclib/build.sh b/recipes/recipes_emscripten/eclib/build.sh
new file mode 100644
index 00000000000..ce5052dd3d1
--- /dev/null
+++ b/recipes/recipes_emscripten/eclib/build.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+set -e
+
+autoreconf -vfi
+
+emconfigure ./configure \
+    --prefix=$PREFIX \
+    --disable-shared \
+    --enable-static \
+    --with-flint=$PREFIX \
+    --with-ntl=$PREFIX \
+    --with-pari=$PREFIX \
+    CPPFLAGS="-I$PREFIX/include" \
+    LDFLAGS="-L$PREFIX/lib"
+
+
+find . -type f -name "Makefile" -exec sed -i 's/^LIBS =.*/& -lmpfr -lgmp/g' {} +
+
+emmake make
+emmake make install
+
+cp progs/*.wasm $PREFIX/bin
diff --git a/recipes/recipes_emscripten/eclib/recipe.yaml b/recipes/recipes_emscripten/eclib/recipe.yaml
new file mode 100644
index 00000000000..41d787ca08c
--- /dev/null
+++ b/recipes/recipes_emscripten/eclib/recipe.yaml
@@ -0,0 +1,49 @@
+context:
+  name: eclib
+  version: '20250627'
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+
+source:
+  url: https://github.com/JohnCremona/eclib/releases/download/${{ version }}/eclib-${{ version }}.tar.bz2
+  sha256: b88d4b52612e491c5415946d9e35f2062ca1015ee7fbbe0b61f158fa74cb4bc9
+
+build:
+  number: 0
+
+requirements:
+  build:
+  - autoconf
+  - automake
+  - libtool
+  - make
+  - ${{ compiler("c") }}
+  - ${{ compiler('cxx') }}
+  - pkg-config
+  - autoconf-archive
+  host:
+  - gmp 
+  - ntl
+  - libflint
+  - pari
+  - mpfr
+
+tests:
+  - package_contents:
+      files:
+        - include/eclib/interface.h
+        - lib/libec.a
+        - lib/pkgconfig/eclib.pc
+        - bin/mwrank
+
+about:
+  homepage: https://github.com/JohnCremona/eclib
+  license: GPL-2.0-only
+  license_file: COPYING
+  summary: The eclib package includes mwrank (for 2-descent on elliptic curves over Q) and modular symbol code used to create the elliptic curve database.
+
+extra:
+  recipe-maintainers:
+  - wangyenshu
\ No newline at end of file
diff --git a/recipes/recipes_emscripten/sirocco/build.sh b/recipes/recipes_emscripten/sirocco/build.sh
new file mode 100644
index 00000000000..8dc12694698
--- /dev/null
+++ b/recipes/recipes_emscripten/sirocco/build.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -euxo pipefail
+
+autoreconf --install
+
+emconfigure ./configure \
+    --prefix="${PREFIX}" \
+    --disable-shared \
+    --enable-static \
+    CPPFLAGS="-I${PREFIX}/include" \
+    LDFLAGS="-L${PREFIX}/lib"
+
+emmake make
+
+emmake make install
diff --git a/recipes/recipes_emscripten/sirocco/recipe.yaml b/recipes/recipes_emscripten/sirocco/recipe.yaml
new file mode 100644
index 00000000000..dfff6d2d4b5
--- /dev/null
+++ b/recipes/recipes_emscripten/sirocco/recipe.yaml
@@ -0,0 +1,44 @@
+context:
+  name: sirocco
+  version: 2.1.1
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+  
+source:
+  url: https://github.com/miguelmarco/SIROCCO2/releases/download/${{ version }}/libsirocco-${{ version }}.tar.gz
+  sha256: 83d1dd5622120eda42c475696235dd67be8072a76baad0a70693d9743a659a61
+
+build:
+  number: 0
+
+requirements:
+  build:
+  - autoconf
+  - automake
+  - libtool
+  - make
+  - ${{ compiler("c") }}
+  - ${{ compiler('cxx') }}
+  - pkg-config
+  - autoconf-archive
+  host:
+  - mpfr
+  - gmp
+
+tests:
+  - package_contents:
+      files:
+        - lib/libsirocco.a
+        - include/sirocco.h
+
+about:
+  homepage: https://github.com/miguelmarco/SIROCCO2
+  license: GPL-3.0-only
+  license_file: LICENSE
+  summary: Sirocco Is a ROot Certified COntinuator
+
+extra:
+  recipe-maintainers:
+  - wangyenshu
diff --git a/recipes/recipes_emscripten/sympow/build.sh b/recipes/recipes_emscripten/sympow/build.sh
new file mode 100644
index 00000000000..89400a7bcb0
--- /dev/null
+++ b/recipes/recipes_emscripten/sympow/build.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -euxo pipefail
+
+# Strip architecture-specific flags that might clash with WebAssembly
+export CFLAGS="$(echo "${CFLAGS:-}" | sed -E 's/-march=[^ ]+//g; s/-mtune=[^ ]+//g')"
+
+# Patch the Configure script to evaluate Emscripten's Wasm capabilities via Node.js
+sed -i 's|-o config/fpubits|-o config/fpubits.js|g' Configure
+sed -i 's|-o config/endiantuple|-o config/endiantuple.js|g' Configure
+
+sed -i 's|config/fpubits >|node config/fpubits.js >|g' Configure
+sed -i 's@^[ \t]*config/fpubits@node config/fpubits.js@g' Configure
+sed -i 's|\$(config/endiantuple)|\$(node config/endiantuple.js)|g' Configure
+
+PREFIX="${PREFIX}" VARPREFIX="${PREFIX}/var" ADDBINPATH=yes sh Configure
+
+# Patch the generated Makefile for cross-compilation
+sed -i 's/\$(HELP2MAN) \$(H2MFLAGS) .*/touch \$@/g' Makefile
+sed -i 's/\$(SH) armd.sh/echo "Skipping armd.sh for cross-compilation"/g' Makefile
+sed -i '/logfile/d' Makefile
+sed -i 's|datafiles/\*.txt ||g' Makefile
+
+emmake make all CC="emcc"
+emmake make install
+cp *.wasm $PREFIX/bin
\ No newline at end of file
diff --git a/recipes/recipes_emscripten/sympow/recipe.yaml b/recipes/recipes_emscripten/sympow/recipe.yaml
new file mode 100644
index 00000000000..0e84c37868c
--- /dev/null
+++ b/recipes/recipes_emscripten/sympow/recipe.yaml
@@ -0,0 +1,44 @@
+context:
+  name: sympow
+  version: 2.023.7
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+
+source:
+  url: https://gitlab.com/rezozer/forks/sympow/-/archive/v${{ version }}/sympow-v${{ version }}.tar.gz
+  sha256: f19a2b428c573f9e4c36a97b736b562e76f4bfc354497abaeb7140632bef3400
+
+build:
+  number: 0
+
+requirements:
+  build:
+  - autoconf
+  - automake
+  - libtool
+  - make
+  - ${{ compiler("c") }}
+  - ${{ compiler('cxx') }}
+  - pkg-config
+  - autoconf-archive
+  - help2man
+  - pari
+  host:
+  - pari
+
+tests:
+  - package_contents:
+      files:
+        - bin/sympow
+
+about:
+  homepage: https://gitlab.com/rezozer/forks/sympow
+  license: LicenseRef-sympow
+  license_file: COPYING
+  summary: SYMmetric POWer elliptic curve L-functions
+
+extra:
+  recipe-maintainers:
+  - wangyenshu
diff --git a/variant.yaml b/variant.yaml
index 47a8b53c23a..284dc80cdcd 100644
--- a/variant.yaml
+++ b/variant.yaml
@@ -554,7 +554,7 @@ orc:
 pango:
   - '1.48'
 pari:
-  - 2.13.* *_pthread
+  - 2.17.*
 perl:
   - 5.32.1
 petsc: