Add installation scripts

simplexup/README.md

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+# simplexup
+
+Install, update, and manage Simplex with ease.
+
+## Installing
+
+Download simplexup:
+
+```bash
+curl -L https://raw.githubusercontent.com/BlockstreamResearch/smplx/master/simplexup/install | bash
+```
+
+## Usage
+
+To install the latest stable Simplex version:
+
+```bash
+simplexup
+```
+
+To install a specific version (in this case the `v0.1.0` version):
+
+```bash
+simplexup --install 0.1.0
+```
+
+To list all versions installed:
+
+```bash
+simplexup --list
+```
+
+To switch between different versions:
+
+```bash
+simplexup --use 0.1.0
+```
+
+To update `simplexup`:
+
+```bash
+simplexup --update
+```
+
+## Uninstalling
+
+Simplex contains everything in a `.simplex` directory located in `/home/<user>/.simplex/` on Linux and `/Users/<user>/.simplex/` on Macos, where `<user>` is your username.
+
+To uninstall Simplex, just remove the `.simplex` directory.
+
+Optionally remove Simplex from PATH:
+
+```bash
+export PATH="$PATH:/home/user/.simplex/bin"
+```
+
+## Disclaimer
+
+GLHF!

simplexup/install

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+#!/usr/bin/env bash
+set -eo pipefail
+
+echo "Installing simplexup..."
+
+BASE_DIR="${XDG_CONFIG_HOME:-$HOME}"
+SIMPLEX_DIR="${SIMPLEX_DIR:-"$BASE_DIR/.simplex"}"
+SIMPLEX_BIN_DIR="$SIMPLEX_DIR/bin"
+
+BIN_URL="https://raw.githubusercontent.com/BlockstreamResearch/smplx/master/simplexup/install"
+BIN_PATH="$SIMPLEX_BIN_DIR/simplexup"
+
+# Create the .simplex bin directory and simplexup binary if it doesn't exist.
+mkdir -p "$SIMPLEX_BIN_DIR"
+curl -sSf -L "$BIN_URL" -o "$BIN_PATH"
+chmod +x "$BIN_PATH"
+
+# Store the correct profile file (i.e. .profile for bash or .zshenv for ZSH).
+case $SHELL in
+*/zsh)
+    PROFILE="${ZDOTDIR-"$HOME"}/.zshenv"
+    PREF_SHELL=zsh
+    ;;
+*/bash)
+    PROFILE=$HOME/.bashrc
+    PREF_SHELL=bash
+    ;;
+*)
+    echo "simplexup: could not detect shell, manually add ${SIMPLEX_BIN_DIR} to your PATH."
+    exit 1
+esac
+
+# Only add simplexup if it isn't already in PATH.
+if [[ ":$PATH:" != *":${SIMPLEX_BIN_DIR}:"* ]]; then
+    # Add the simplexup directory to the path and ensure the old PATH variables remain.
+    echo >> "$PROFILE" && echo "export PATH=\"\$PATH:$SIMPLEX_BIN_DIR\"" >> "$PROFILE"
+fi
+
+echo
+echo "Detected your preferred shell is $PREF_SHELL and added simplexup to PATH."
+echo "Run 'source $PROFILE' or start a new terminal session to use simplexup."
+echo "Then, simply run 'simplexup' to install Simplex."