tweak: Initial commit

README.md

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+NUÑO's STUPID NODE VERSION MANAGER
+==================================
+
+## About
+
+The problem: Current node version managers, such as [nvm](https://github.com/nvm-sh/nvm) or [asdf](https://asdf-vm.com/) are too slow. In particular, they add half a second to a few seconds when loaded with bash.
+
+The solution: Write a stupidly simple node version manager which is significantly simpler, hackier, less featureful, and less secure, but much faster. 
+
+Use this software at your own risk. In particular, consider reading the source code.
+
+## Usage
+
+Read the `nsnvm.sh` file, then execute it like:
+
+```
+./nsvnm.sh 18.12.1
+```
+
+Make sure that you pass it one argument and that it is a correct node version number: there is no error checking.

nsnvm.sh

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+#!/bin/bash
+
+dir="$HOME/.nnvm"
+version="$1"
+referent="node-v$version-linux-x64"
+nodejs_url="https://nodejs.org/dist/v$version/$referent.tar.xz"
+
+mkdir -p "$dir"
+cd "$dir"
+rm -f "$dir/$referent.tar.xz" 
+rm -rf "$dir/$referent"
+wget "$nodejs_url"
+tar xf "$referent.tar.xz"
+
+sudo rm -f /usr/bin/node
+sudo rm -f /usr/bin/npm
+sudo rm -f /usr/bin/npx
+
+sudo ln -s "$dir/$referent/bin/node" "/usr/bin"
+sudo ln -s "$dir/$referent/bin/npm" "/usr/bin"
+sudo ln -s "$dir/$referent/bin/npx" "/usr/bin"