diff --git a/recipes/wip/finance/mgmt/hledger/recipe.toml b/recipes/wip/finance/mgmt/hledger/recipe.toml
new file mode 100644
index 000000000..2b93f31e1
--- /dev/null
+++ b/recipes/wip/finance/mgmt/hledger/recipe.toml
@@ -0,0 +1,12 @@
+#TODO missing script for stack or cabal: https://hledger.org/install.html#build-from-source
+[source]
+git = "https://github.com/simonmichael/hledger"
+rev = "1.52.1"
+shallow_clone = true
+[build]
+template = "custom"
+dependencies = [
+    "libgmp",
+    "ncursesw",
+    "zlib",
+]
diff --git a/recipes/wip/kde/kalzium/recipe.toml b/recipes/wip/kde/kalzium/recipe.toml
new file mode 100644
index 000000000..23f379a9e
--- /dev/null
+++ b/recipes/wip/kde/kalzium/recipe.toml
@@ -0,0 +1,13 @@
+#TODO determine minimum dependencies from cmake log
+# optional dependencies enable the molecular editor
+[source]
+git = "https://invent.kde.org/education/kalzium"
+branch = "release/26.04"
+shallow_clone = true
+[build]
+template = "cmake"
+#dependencies = [
+    #"libeigen",
+    #"openbabel",
+    #"avogadro",
+#]
diff --git a/recipes/wip/net/http/caddy/recipe.toml b/recipes/wip/net/http/caddy/recipe.toml
new file mode 100644
index 000000000..b181ff52f
--- /dev/null
+++ b/recipes/wip/net/http/caddy/recipe.toml
@@ -0,0 +1,6 @@
+#TODO implement "go" template
+# build instructions: https://caddyserver.com/docs/build
+[source]
+tar = "https://github.com/caddyserver/caddy/releases/download/v2.11.3/caddy_2.11.3_src.tar.gz"
+[build]
+template = "go"
diff --git a/recipes/wip/net/other/iocaine/recipe.toml b/recipes/wip/net/other/iocaine/recipe.toml
new file mode 100644
index 000000000..f3a6efb60
--- /dev/null
+++ b/recipes/wip/net/other/iocaine/recipe.toml
@@ -0,0 +1,8 @@
+#TODO compile and test
+[source]
+git = "https://git.madhouse-project.org/iocaine/iocaine"
+branch = "iocaine-3.x"
+shallow_clone = true
+[build]
+template = "cargo"
+cargopackages = ["iocaine"]
diff --git a/recipes/wip/net/vpn/wireguard-tools/recipe.toml b/recipes/wip/net/vpn/wireguard-tools/recipe.toml
new file mode 100644
index 000000000..b21300ef5
--- /dev/null
+++ b/recipes/wip/net/vpn/wireguard-tools/recipe.toml
@@ -0,0 +1,9 @@
+#TODO missing script for gnu make: https://git.zx2c4.com/wireguard-tools/tree/README.md
+[source]
+tar = "https://git.zx2c4.com/wireguard-tools/snapshot/wireguard-tools-1.0.20260223.tar.xz"
+[build]
+template = "custom"
+[package]
+dependencies = [
+    "wireguard-rs",
+]
diff --git a/recipes/wip/players/musikcube/recipe.toml b/recipes/wip/players/musikcube/recipe.toml
new file mode 100644
index 000000000..c90f0cf28
--- /dev/null
+++ b/recipes/wip/players/musikcube/recipe.toml
@@ -0,0 +1,23 @@
+#TODO compile and test
+# build instructions: https://github.com/clangen/musikcube/wiki/building#linux-and-bsd
+[source]
+git = "https://github.com/clangen/musikcube"
+rev = "3.0.5"
+shallow_clone = true
+[build]
+template = "cmake"
+dependencies = [
+    "libogg",
+    "libvorbis",
+    "ffmpeg6",
+    "libpulse",
+    "curl",
+    "zlib",
+    "ncursesw",
+    "taglib",
+    "libmicrohttpd",
+    "libev",
+    "openssl3",
+    "libopenmpt",
+    "lame",
+]
diff --git a/recipes/wip/science/qgis-ltr/recipe.toml b/recipes/wip/science/qgis-ltr/recipe.toml
new file mode 100644
index 000000000..79e751a56
--- /dev/null
+++ b/recipes/wip/science/qgis-ltr/recipe.toml
@@ -0,0 +1,31 @@
+#TODO determine minimum dependencies from cmake log
+# build instructions: https://github.com/qgis/QGIS/blob/release-4_0/INSTALL.md
+[source]
+git = "https://github.com/qgis/QGIS"
+rev = "final-4_0_3"
+shallow_clone = true
+[build]
+template = "cmake"
+cmakeflags = [
+    "-DWITH_GUI=FALSE",
+    "-DWITH_3D=FALSE",
+    "-DWITH_QTPOSITIONING=FALSE",
+    "-DUSE_PRECOMPILED_HEADERS=OFF", # does it's needed?
+    "-DENABLE_TESTS=FALSE",
+]
+dependencies = [
+    #"qt6-base",
+    "sqlite3",
+    "expat",
+    "libzip",
+    "protobuf",
+    "geos",
+    #"qscintilla",
+    #"proj",
+    #"libspatialite",
+    #"libspatiaindex",
+    #"gdal",
+    #"qtkeychain",
+    #"qca-qt6",
+    #"qwt",
+]
diff --git a/recipes/wip/security/chkrootkit/recipe.toml b/recipes/wip/security/chkrootkit/recipe.toml
new file mode 100644
index 000000000..9520327ce
--- /dev/null
+++ b/recipes/wip/security/chkrootkit/recipe.toml
@@ -0,0 +1,5 @@
+#TODO add script for gnu make: https://www.chkrootkit.org/README
+[source]
+tar = "ftp://ftp.chkrootkit.org/pub/seg/pac/chkrootkit.tar.gz"
+[build]
+template = "custom"
diff --git a/recipes/wip/security/ossec-hids/recipe.toml b/recipes/wip/security/ossec-hids/recipe.toml
new file mode 100644
index 000000000..bb888aeaa
--- /dev/null
+++ b/recipes/wip/security/ossec-hids/recipe.toml
@@ -0,0 +1,12 @@
+#TODO add script for cross-compilation: https://github.com/ossec/ossec-hids/blob/main/INSTALL
+[source]
+git = "https://github.com/ossec/ossec-hids"
+rev = "4.1.0"
+shallow_clone = true
+[build]
+template = "custom"
+dependencies = [
+    "openssl3",
+    "pcre2",
+    "zlib",
+]
diff --git a/recipes/wip/security/zabbix-lts/recipe.toml b/recipes/wip/security/zabbix-lts/recipe.toml
new file mode 100644
index 000000000..8afa1a735
--- /dev/null
+++ b/recipes/wip/security/zabbix-lts/recipe.toml
@@ -0,0 +1,7 @@
+#TODO compile and test
+#TODO discover minimum dependencies from configure log
+# build and configuration instructions: https://www.zabbix.com/documentation/7.0/en/manual/installation/install
+[source]
+tar = "https://cdn.zabbix.com/zabbix/sources/stable/7.0/zabbix-7.0.26.tar.gz"
+[build]
+template = "configure"
diff --git a/recipes/wip/video/other/streamlink/recipe.toml b/recipes/wip/video/other/streamlink/recipe.toml
new file mode 100644
index 000000000..63bc2afb1
--- /dev/null
+++ b/recipes/wip/video/other/streamlink/recipe.toml
@@ -0,0 +1,10 @@
+#TODO add script for pip: https://streamlink.github.io/install.html#source-distribution
+#TODO missing dependencies
+[source]
+tar = "https://github.com/streamlink/streamlink/releases/download/8.4.0/streamlink-8.4.0.tar.gz"
+[build]
+template = "custom"
+script = """
+mkdir -pv "${COOKBOOK_STAGE}/home/user/streamlink"
+cp -rv "${COOKBOOK_SOURCE}"/* "${COOKBOOK_STAGE}/home/user/streamlink"
+"""