diff --git a/assets/css/index.css b/assets/css/index.css
index abddf45..d386af6 100644
--- a/assets/css/index.css
+++ b/assets/css/index.css
@@ -1,30 +1,42 @@
 @import url('https://fonts.cdnfonts.com/css/jetbrains-mono-2');
 
 :root {
-  --font-family: "JetBrains Mono", monospace;
-  --line-height: 1.20rem;
+  // --font-family: "Pixel Code", monospace;
+  // --font-family: "Maple Mono", monospace;
+  // --font-family: "JetBrains Mono", monospace;
+  --font-family: "Iosevka", monospace;
+  // --font-family-alt: "Pixel Code", monospace;
+  // --font-family-alt: "AcPlus IBM VGA 9x16", monospace;
+  --font-family-titles: "AcPlus IBM VGA 9x16", monospace;
+  // --font-family-titles: "Maple Mono", monospace;
+  // --font-family-titles: "Pixel Code", monospace;
+  --line-height: 1.40rem;
   --border-thickness: 2px;
-  --text-color: #000;
+  --text-color: #333;
   --text-color-alt: #666;
+  --text-color-accent: #000;
   --background-color: #fff;
   --background-color-alt: #eee;
+  // --transform: uppercase;
 
   --font-weight-normal: 500;
   --font-weight-medium: 600;
   --font-weight-bold: 800;
+  --font-weight-titles: 600;
 
   font-family: var(--font-family);
   font-optical-sizing: auto;
   font-weight: var(--font-weight-normal);
   font-style: normal;
   font-variant-numeric: tabular-nums lining-nums;
-  font-size: 16px;
+  font-size: 13px;
 }
 
 @media (prefers-color-scheme: dark) {
   :root {
-    --text-color: #fff;
-    --text-color-alt: #aaa;
+    --text-color: #aaa;
+    --text-color-alt: #898;
+    --text-color-accent: #ddd;
     --background-color: #000;
     --background-color-alt: #111;
   }
@@ -55,7 +67,7 @@ body {
   width: 100%;
   margin: 0;
   padding: var(--line-height) 2ch;
-  max-width: calc(min(80ch, round(down, 100%, 1ch)));
+  max-width: calc(min(100ch, round(down, 100%, 1ch)));
   line-height: var(--line-height);
   overflow-x: hidden;
 }
@@ -73,19 +85,25 @@ h1, h2, h3, h4, h5, h6 {
   font-weight: var(--font-weight-bold);
   margin: calc(var(--line-height) * 2) 0 var(--line-height);
   line-height: var(--line-height);
+  color: var(--text-color-accent);
 }
 
 h1 {
-  font-size: 2rem;
+  font-size: 6rem;
   line-height: calc(2 * var(--line-height));
   margin-bottom: calc(var(--line-height) * 2);
-  text-transform: uppercase;
+  text-transform: var(--transform);
+  font-family: var(--font-family-titles);
+  font-weight: var(--font-weight-titles);
 }
 h2 {
-  font-size: 1rem;
-  text-transform: uppercase;
+  font-size: 2rem;
+  font-family: var(--font-family-titles);
+  font-weight: var(--font-weight-titles);
+  text-transform: var(--transform);
+  // margin-left: calc(var(--line-height) * 1);
 }
-
+  text-transform: var(--transform)
 hr {
   position: relative;
   display: block;
@@ -225,15 +243,18 @@ details :last-child {
 pre {
   white-space: pre;
   overflow-x: auto;
-  margin: var(--line-height) 0;
+  margin: 10px;
+  padding: 10px;
+  background: var(--background-color-alt);
   overflow-y: hidden;
+  color: var(--text-color-alt);
 }
 figure pre {
   margin: 0;
 }
 
 pre, code {
-  font-family: var(--font-family);
+  font-family: var(--font-family-alt);
 }
 
 code {
@@ -347,7 +368,7 @@ button::-moz-focus-inner {
 }
 
 button {
-  text-transform: uppercase;
+  text-transform: var(--transform);
   font-weight: var(--font-weight-medium);
   cursor: pointer;
 }
diff --git a/build.zig b/build.zig
index 80a9ec7..11f6aee 100644
--- a/build.zig
+++ b/build.zig
@@ -12,4 +12,7 @@ pub fn build(b: *std.Build) !void {
 
     const install_step = b.addInstallFile(b.path("install"), "install");
     b.getInstallStep().dependOn(&install_step.step);
+
+    const install_key = b.addInstallFile(b.path("public.gpg"), "public.gpg");
+    b.getInstallStep().dependOn(&install_key.step);
 }
diff --git a/content/index.smd b/content/index.smd
index bef6e37..cac4bb3 100644
--- a/content/index.smd
+++ b/content/index.smd
@@ -1,12 +1,14 @@
 ---
-.title = "Flow Control - a programmer's text editor",
+.title = "Flow Control",
 .date = @date("2020-07-06T00:00:00"),
 .author = "CJ van den Berg",
 .layout = "home.shtml",
 .draft = false,
 ---
 
-This is a programmer's text editor. It is under active development, but usually stable.
+## a programmer's text editor
+
+Flow Control is under active development, but usually very stable.
 
 []($video.siteAsset('video/flow-control.mp4').controls(true))
 
@@ -30,7 +32,25 @@ This is a programmer's text editor. It is under active development, but usually
 ## 📦 Installation
 
 ### Installer
-``` curl -fsSL https://www.flow-control.dev/install | sh ```
+
+Install the latest release to `/usr/local/bin`:
+
+```
+curl -fsSL https://flow-control.dev/install | sh
+```
+
+Install latest nightly build and specify the install prefix:
+
+```
+curl -fsSL https://flow-control.dev/install | sh -s -- --nightly --prefix ~/.local/bin
+```
+
+Install latest nightly build and verify against gpg signature:
+
+```
+curl -fsSL https://flow-control.dev/install | sh -s -- --nightly --verify
+```
+
 
 ### Prebuilt Binaries
 - Stable: [Releases](https://github.com/neurocyte/flow/releases)
@@ -82,7 +102,7 @@ kitty_mod ctrl+alt
 flow file.zig:42                    # Open at line 42
 flow --language zig CMakeLists.txt  # Force file type
 flow --list-languages               # Show all supported languages
-flow --help                         # Full list of command line options
+flow --help                         # List of command line options
 ```
 
 ## ⌨️ Key Controls
diff --git a/install b/install
index 4a8ed5f..a680b1b 100644
--- a/install
+++ b/install
@@ -1,42 +1,149 @@
 #!/bin/sh
-
 set -e
 
-REPO="neurocyte/flow"
-INSTALL_DIR="/usr/local/bin"
+install_dir="/usr/local/bin"
+add_alias=0
+nightly=0
+verify=0
+local=0
 
-# detect os and architecture
-OS="$(uname -s | tr '[:upper:]' '[:lower:]')"
-if [ "$OS" = "darwin" ]; then
-  OS="macos"
+while true; do
+    case "${1}" in
+    -a | --alias)
+        add_alias=1
+        shift 1
+        ;;
+    -n | --nightly)
+        nightly=1
+        shift 1
+        ;;
+    -p | --prefix)
+        install_dir=/$2
+        shift 2
+        ;;
+    -V | --verify)
+        verify=1
+        shift 1
+        ;;
+    -l | --local)
+        local=1
+        shift 1
+        ;;
+    --)
+        shift 1
+        break
+        ;;
+    *) break ;;
+    esac
+done
+
+# prompt for nightly build option if interactive
+if [ "$nightly" -eq 0 ] && [ -t 0 ]; then
+    printf "do you want to install a Nightly build? [y/N]: "
+    read -r answer_nightly
+    if [ "$answer_nightly" = "y" ] || [ "$answer_nightly" = "Y" ]; then
+        nightly=1
+    fi
 fi
 
-ARCH="$(uname -m)"
-case "$ARCH" in
-  x86_64) ARCH="x86_64" ;;
-  arm64) ARCH="aarch64" ;;
+if [ "$nightly" -eq 1 ]; then
+    repo="neurocyte/flow-nightly"
+else
+    repo="neurocyte/flow"
+fi
+
+# detect os and architecture
+os="$(uname -s | tr '[:upper:]' '[:lower:]')"
+if [ "$os" = "darwin" ]; then
+    os="macos"
+fi
+
+arch="$(uname -m)"
+case "$arch" in
+x86_64) arch="x86_64" ;;
+arm64) arch="aarch64" ;;
+i686) arch="x86" ;;
+i386) arch="x86" ;;
 esac
 
 # get latest version tag from github releases api
-VERSION=$(curl -s "https://api.github.com/repos/$REPO/releases/latest" | grep '"tag_name":' | cut -d'"' -f4)
-[ -z "$VERSION" ] && { echo "failed to fetch latest version"; exit 1; }
+version=$(curl -s "https://api.github.com/repos/$repo/releases/latest" | grep '"tag_name":' | cut -d'"' -f4)
+[ -z "$version" ] && {
+    echo "failed to fetch latest version"
+    exit 1
+}
 
 # construct download url
-FILENAME="flow-$VERSION-$OS-$ARCH"
-EXT="tar.gz"
-[ "$OS" = "windows" ] && EXT="zip"
-URL="https://github.com/$REPO/releases/download/$VERSION/$FILENAME.$EXT"
+# note: nightly assets are named like "flow-<version>-<os>-<arch>.<ext>"
+filename="flow-$version-$os-$arch"
+ext="tar.gz"
+if [ "$os" = "windows" ]; then
+    ext="zip"
+fi
+url="https://github.com/$repo/releases/download/$version/$filename.$ext"
 
-echo "downloading flow $VERSION..."
-curl -L "$URL" -o "/tmp/$FILENAME.$EXT"
-
-echo "installing flow..."
-if [ "$EXT" = "tar.gz" ]; then
-  tar -xzf "/tmp/$FILENAME.$EXT" -C "$INSTALL_DIR"
+if [ "$nightly" -eq 1 ]; then
+    echo "downloading NIGHTLY build $version..."
 else
-  unzip -o "/tmp/$FILENAME.$EXT" -d "$INSTALL_DIR"
+    echo "downloading flow $version..."
 fi
 
-chmod +x "$INSTALL_DIR/flow"
-rm "/tmp/$FILENAME.$EXT"
-echo "flow installed successfully!"
\ No newline at end of file
+curl -fL "$url" -o "/tmp/$filename.$ext"
+
+# simple file size check (adjust threshold if needed)
+filesize=$(stat -c%s "/tmp/$filename.$ext" 2>/dev/null || stat -f%z "/tmp/$filename.$ext")
+if [ "$filesize" -lt 100 ]; then
+    echo "downloaded file appears to be invalid (size: ${filesize} bytes)"
+    exit 1
+fi
+
+if [ "$verify" -eq 0 ] && [ -t 0 ]; then
+    printf "do you want to download and verify the gpg signature? [y/N]: "
+    read -r answer_verify
+    if [ "$answer_verify" = "y" ] || [ "$answer_verify" = "Y" ]; then
+        verify=1
+    fi
+fi
+
+if [ "$verify" -eq 1 ]; then
+    curl -fL "$url.sig" -o "/tmp/$filename.$ext.sig"
+    curl -fL 'https://flow-control.dev/public.gpg' -o /tmp/flow-control-public.gpg
+    gpg --no-default-keyring --keyring /tmp/flow-control-public.gpg --verify "/tmp/$filename.$ext.sig" "/tmp/$filename.$ext"
+
+    if [ "$local" -eq 1 ]; then
+        gpg --verify "/tmp/$filename.$ext.sig" "/tmp/$filename.$ext"
+    fi
+
+    rm /tmp/flow-control-public.gpg
+    rm "/tmp/$filename.$ext.sig"
+fi
+
+echo "installing $([ "$nightly" -eq 1 ] && echo 'NIGHTLY build' || echo 'flow')..."
+if [ "$ext" = "tar.gz" ]; then
+    tar -xzf "/tmp/$filename.$ext" -C "$install_dir"
+else
+    unzip -o "/tmp/$filename.$ext" -d "$install_dir"
+fi
+
+chmod +x "$install_dir/flow"
+rm "/tmp/$filename.$ext"
+echo "$([ "$nightly" -eq 1 ] && echo 'NIGHTLY build' || echo 'flow') installed successfully!"
+
+create_alias() {
+    if [ -e "$install_dir/f" ]; then
+        echo "warning: existing file or alias detected at $install_dir/f, overwriting..."
+        rm -f "$install_dir/f"
+    fi
+    ln -s "$install_dir/flow" "$install_dir/f"
+    echo "alias 'f' created successfully!"
+}
+
+if [ "$add_alias" -eq 1 ]; then
+    create_alias
+elif [ -t 0 ]; then
+    printf "do you want to create an alias 'f' for 'flow'? [y/N]: "
+    read -r answer_alias
+    if [ "$answer_alias" = "y" ] || [ "$answer_alias" = "Y" ]; then
+        create_alias
+    fi
+fi
diff --git a/public.gpg b/public.gpg
new file mode 100644
index 0000000..f199e02
Binary files /dev/null and b/public.gpg differ