How to restore DB from SQLC file
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`pg_restore -d db_name /path/to/sqlc/file.sqlc`

Fix libv8 / therubyracer installing error
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Sometimes, something unexpected grabs our attention - libv8 or therubyracer extensions installation error - here's how to get rid of them!

How to be up to date with Ruby and Ruby On Rails releases
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Ruby releases: https://www.ruby-lang.org/en/downloads/releases/ Ruby On Rails releases: https://rubygems.org/gems/rails/versions

Rails migration decimal precision scale
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Rails migration decimal precision scale explained quasi visually ``` 123.45678912345 <- scale -> <- precision -> ```

Cleaning schema.rb
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Since [apartment](https://github.com/influitive/apartment) uses `schema.rb` as a source for new schemas, it is important to keep this file clean. Running mig...

Prettier raw SQL in ruby
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Use this syntax to format raw SQL nicely in ruby code. In some editors it also enables SQL syntax highlighting.

How to remove deleted branch names from git suggestions?
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How to remove deleted branch names from git suggestions? It's as simple as that: ``` git fetch --prune --all ``` Or (thanks to @mus) you can add this...

Fix nokogiri installing error (libxml2)
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While running bundle install in Rails app you haven't used previously, you may encounter `ERROR: cannot discover where libxml2 is located on your system.` error. This indicates that Ruby can't find libxml2 - although it's probably installed, with Xcode! Here you'll see how to resolve this issue.

How to add polish dictionary to postgres
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PostgreSQL dictionary consists of 3 files: * lang.dict * lang.affix * lang.stop # Generating dictionary files 1. Download the most recent polish Isp...

Run RSpec without feature specs
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`rspec spec --tag ~@type:feature`

How to hold Mac from going into sleep?
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Every Mac owner knows how painful it is if their SSH session with a very important process just disconnects because of Mac going into sleep. Hopefully, there's a way to tell macOS that you don't want it to sleep - and here, you'll learn how to do it.

How to run PostgreSQL if 'postmaster.pid' already exists
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How to run PostgreSQL if it isn't starting because 'postmaster.pid' already exists

Multiline method memoization in ruby
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Method memoization in ruby is easy when the method is one line long: ``` def something @something ||= # your calculations end ``` But when we hav...

RSpec rerun failures
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How to configure RSpec to rerun failed specs only

Implement .node-version file in Bash & NVM (Also for ZSH!)
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This snippet will allow you to automatically load node version stored in `.node-version` while changing current directory.

How to show macOS notification from Bash?
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Sometimes some task takes a long time and you want to know when it finishes. The system can show you desktop notification with predefined (or added as variable) message.

How to install gem without documentation
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Hi, You've probably noticed that installation of gem documentation takes more time than installing gem itself. It can be annoying especially when you've alr...

How to clear sidekiq queue
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How to clear sidekiq queue in 4 steps?

ThisPersonDoesNotExist, A Website That Uses AI To Make Fake Human Faces
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https://thispersondoesnotexist.com/ the website has the capabilities of conjuring up an image using the GAN algorithm. The GAN works by splitting the ta...

https://thispersondoesnotexist.com/

Ruby logger log levels
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OK, it seems obvious but I always spend several minutes finding it. So I think it's a good idea to put it here.

Brakeman - An awesome gem that scans your app against vulnerabilities.
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To use Brakeman, the only thing is to install the gem: ``` $ gem install brakeman ``` and then run the single command in Rails application's root dir...

https://github.com/presidentbeef/brakeman

Open Source GUI macOS archiver with support for 7-Zip
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This program will help you compress and extract 7-Zips (and other popular archive formats) without using command line.

https://www.keka.io/en/

How to Address a Lady in a Business Letter
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How to Address a Lady in a Business Letter? Here some advises. ## Not married `"Ms. #{last_name}"` or `"Miss #{last_name}"` ## Married `"Mrs. #{l...

How to drop a production database in Rails 5
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I encountered a problem when dropping a production database. Here's the solution