```ruby
require "sequel"

Sequel.extension :inflector

require 'sequel/plugins/serialization'

Sequel::Plugins::Serialization.register_format(
  :ojson,
  lambda { |v| Yajl::Encoder.new.encode(v) },
  lambda { |v| Yajl::Parser.new(:symbolize_keys => true).parse(v)   }
)
# Sequel::Plugins::Serialization.register_format(
#   :ojson,
#   lambda { |v| Oj.dump(v) },
#   lambda { |v| Oj.load(v, symbol_keys: true)   }
# )

```

Set Sequel's timezones to UTC
user
```ruby
require "sequel"

Sequel.extension :inflector

# See http://sequel.jeremyevans.net/rdoc/classes/Sequel/Timezones.html
# UTC is more performant than :local (or 'nil' which just fallsback to :local)
# A basic profiling run gives a 2 x performance improvement of :utc over :local
# With ~240 rows, timing ::Content.all gives:
#
#     :utc     ~0.04s
#     :local   ~0.08s
#
# DB timestamps are only shown in the editing UI & could be localized there per-user
Sequel.default_timezone = :utc

require 'sequel/plugins/serialization'

Sequel::Plugins::Serialization.register_format(
  :ojson,
  lambda { |v| Yajl::Encoder.new.encode(v) },
  lambda { |v| Yajl::Parser.new(:symbolize_keys => true).parse(v)   }
)
# Sequel::Plugins::Serialization.register_format(
#   :ojson,
#   lambda { |v| Oj.dump(v) },
#   lambda { |v| Oj.load(v, symbol_keys: true)   }
# )

```
assistant