diff --git a/formula/i2pd.yml b/formula/i2pd.yml
new file mode 100644
index 0000000..3412b98
--- /dev/null
+++ b/formula/i2pd.yml
@@ -0,0 +1,19 @@
+summary: Full-featured C++ implementation of I2P client
+web-url: https://i2pd.website/
+src-url: https://github.com/PurpleI2P/i2pd/archive/refs/tags/2.55.0.tar.gz
+src-sha: f5792a1c0499143c716663e90bfb105aaa7ec47d1c4550b5f90ebfc25da00c6c
+license: BSD-3-Clause
+dep-pkg: boost libminiupnpc libopenssl
+
+dopatch: gsed -i 's|-lcrypto -lssl|-lssl -lcrypto|' Makefile.linux
+
+prepare: export CXXFLAGS="$CXXFLAGS $CPPFLAGS"
+
+install: |
+    gmakew clean
+    gmakew install \
+        DEBUG=no \
+        HOMEBREW=0 \
+        USE_UPNP=yes \
+        PREFIX=$PACKAGE_INSTALL_DIR \
+        SSLROOT=$libopenssl_INSTALL_DIR
diff --git a/formula/libminiupnpc.yml b/formula/libminiupnpc.yml
new file mode 100644
index 0000000..8f2ecf5
--- /dev/null
+++ b/formula/libminiupnpc.yml
@@ -0,0 +1,8 @@
+summary: UPnP IGD client library and daemon
+web-url: https://miniupnp.tuxfamily.org
+src-url: http://miniupnp.free.fr/files/miniupnpc-2.3.0.tar.gz
+src-sha: 025c9ab95677f02a69bc64ac0a747f07e02ba99cf797bc679a5a552fed8d990c
+license: BSD-3-Clause
+install: |
+    gmakew clean
+    gmakew install INSTALLPREFIX="$PACKAGE_INSTALL_DIR"
diff --git a/formula/sysinfo.yml b/formula/sysinfo.yml
index faf2b83..7fccd4b 100644
--- a/formula/sysinfo.yml
+++ b/formula/sysinfo.yml
@@ -1,4 +1,3 @@
-summary: A command-line tool to get your currently running system information
-git-url: https://github.com/leleliu008/C-examples
-bscript: utils/sysinfo
+summary: A command-line utility to print your currently running system information
+git-url: https://github.com/leleliu008/sysinfo
 install: cmakew --targets=sysinfo --components=bin
diff --git a/formula/trayscale.yml b/formula/trayscale.yml
new file mode 100644
index 0000000..5cf1039
--- /dev/null
+++ b/formula/trayscale.yml
@@ -0,0 +1,9 @@
+summary: An unofficial GUI wrapper around the Tailscale CLI client
+src-url: https://github.com/DeedleFake/trayscale/archive/refs/tags/v0.14.1.tar.gz
+src-sha: 860fe136b02140a6956a38be025de43c0f579707e8f21e94e8270cb6b98adcfe
+license: MIT
+dep-pkg: libadwaita
+bsystem: go
+install: |
+    run ./dist.sh build "$PACKAGE_VERSION"
+    run ./dist.sh install "$PACKAGE_INSTALL_DIR"
diff --git a/formula/xsltproc.yml b/formula/xsltproc.yml
index 5e77fdd..cb98c72 100644
--- a/formula/xsltproc.yml
+++ b/formula/xsltproc.yml
@@ -1,8 +1,8 @@
 summary: A command line tool for applying XSLT stylesheets to XML documents
 web-url: http://xmlsoft.org/XSLT
 git-url: https://github.com/GNOME/libxslt
-src-url: https://download.gnome.org/sources/libxslt/1.1/libxslt-1.1.39.tar.xz
-src-sha: 2a20ad621148339b0759c4d4e96719362dee64c9a096dbba625ba053846349f0
+src-url: https://download.gnome.org/sources/libxslt/1.1/libxslt-1.1.42.tar.xz
+src-sha: 85ca62cac0d41fc77d3f6033da9df6fd73d20ea2fc18b0a3609ffb4110e1baeb
 license: X11
 dep-pkg: libxml2