Memos are short entries like TIL, code snippets or article summary that are not long or valuable enough to become a full-fledged article 🙂

• A brief refresher about Rails `ActiveSupport::Concern` 20 July 2020
• Your first 90 days as CTO (article summary) 30 March 2020
• `insert_all` and `upsert_all` ActiveRecord methods 3 March 2020
• dmesg, another tool in my toolbox 2 March 2020
• Mysterious trio: DKIM, SPF and DMARC 1 March 2020
• Reverse engineering a bash command 21 February 2020
• Extending bash history limits 20 February 2020
• The most effective way of iterating over CSV files in Ruby 18 February 2020