diff --git a/featlib/curl.sh b/featlib/curl.sh
new file mode 100644
index 0000000..745980f
--- /dev/null
+++ b/featlib/curl.sh
@@ -0,0 +1,17 @@
+#! /bin/bash --
+[ ! -z "${GREZZO_1604316819}" ] && return; GREZZO_1604316819=0
+
+function feat_addpacks_curl() {
+    if ! feat_missing "apt-get"; then
+        sudo apt-get install -y curl
+        elif ! feat_missing "pacman"; then
+        sudo pacman -S --needed curl
+        elif ! feat_missing "apk"; then
+        sudo apk add --no-cache curl
+    fi
+}
+
+function feat_add_curl() {
+	feat_addpacks_curl
+}
+
diff --git a/featlib/pip.sh b/featlib/pip.sh
index d13e2e0..b561387 100755
--- a/featlib/pip.sh
+++ b/featlib/pip.sh
@@ -1,6 +1,8 @@
 #! /bin/bash --
 [ ! -z "${GREZZO_1577142035}" ] && return; GREZZO_1577142035=0
 
+. "$(this_script_path)/curl.sh"
+
 function feat_addpacks_pip_dev() {
     if ! feat_missing "apt-get"; then
         sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev \
@@ -24,6 +26,7 @@ function feat_addpacks_pip_dev() {
 }
 
 function feat_add_pip() {
+    feat_needed curl
     feat_addpacks_pip_dev
     sed -n -e '/# Load pyenv automatically/,$p' \
     <(curl https://pyenv.run | bash 2>&1) \
diff --git a/featlib/poetry.sh b/featlib/poetry.sh
index 97530ac..24bdd67 100644
--- a/featlib/poetry.sh
+++ b/featlib/poetry.sh
@@ -2,9 +2,11 @@
 [ ! -z "${GREZZO_1577142078}" ] && return; GREZZO_1577142078=0
 
 . "$(this_script_path)/pip.sh"
+. "$(this_script_path)/curl.sh"
 
 function feat_add_poetry() {
 	feat_needed "pip"
+	feat_needed "curl"
 	curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python
 	. "$HOME/.poetry/env"
 }
diff --git a/featlib/rustup.sh b/featlib/rustup.sh
new file mode 100644
index 0000000..2314f44
--- /dev/null
+++ b/featlib/rustup.sh
@@ -0,0 +1,11 @@
+#! /bin/bash --
+[ ! -z "${GREZZO_1604315952}" ] && return; GREZZO_1604315952=0
+
+. "$(this_script_path)/curl.sh"
+
+function feat_add_rustup() {
+    feat_needed "curl"
+	curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+    . "$HOME/.cargo/env"
+}
+