What I Touched This Week 2017-10-22

Vim After 15 Years | Ian Langworth’s Things of Variable Interest
Vim tips
How does Ethereum work, anyway? – Preethi Kasireddy – Medium
Introduction to Ethereum
Use luarocks installed via Homebrew without sudo
Edit /usr/local/Cellar/lua@5.3/5.3.4/libexec/share/lua/5.3/luarocks/fs/lua.lua.
In function fs_lua.check_command_permissions(flags), Change the if condition to
```
if fs.exists(dir) and not fs.is_writable(dir) and not fs.is_writable(dir .. "/bin") then
```

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