diff --git a/lib/trmnl/liquid.rb b/lib/trmnl/liquid.rb
index a92639d..42793aa 100644
--- a/lib/trmnl/liquid.rb
+++ b/lib/trmnl/liquid.rb
@@ -1,34 +1,34 @@
 # frozen_string_literal: true
 
-require 'liquid'
-
-require 'trmnl/liquid/filters'
-require 'trmnl/liquid/file_system'
-require 'trmnl/liquid/template_tag'
+require "liquid"
+require "trmnl/liquid/file_system"
+require "trmnl/liquid/filters"
+require "trmnl/liquid/template_tag"
 
 # optional
 begin
-  require 'trmnl/i18n'
+  require "trmnl/i18n"
 rescue LoadError
   nil
 end
 
-if defined?(::TRMNL::I18n)
-  ::TRMNL::I18n.load_locales
-end
+TRMNL::I18n.load_locales if defined?(TRMNL::I18n)
 
-if Gem.loaded_specs['rails-i18n']
-  ::I18n.load_path += Pathname.new(Gem.loaded_specs['rails-i18n'].full_gem_path).join('rails', 'locale').glob('*.yml')
+if Gem.loaded_specs["rails-i18n"]
+  I18n.load_path += Pathname.new(Gem.loaded_specs["rails-i18n"].full_gem_path).join(
+    "rails",
+    "locale"
+  ).glob("*.yml")
 end
 
 module TRMNL
   module Liquid
     def self.build_environment(*args)
       ::Liquid::Environment.build(*args) do |env|
-        env.register_filter(TRMNL::Liquid::Filters)
-        env.register_tag('template', TRMNL::Liquid::TemplateTag)
+        env.register_filter TRMNL::Liquid::Filters
+        env.register_tag "template", TRMNL::Liquid::TemplateTag
         env.file_system = TRMNL::Liquid::FileSystem.new
-        yield(env) if block_given?
+        yield env if block_given?
       end
     end
   end
diff --git a/lib/trmnl/liquid/fallback.rb b/lib/trmnl/liquid/fallback.rb
index dfe0953..ebd5d50 100644
--- a/lib/trmnl/liquid/fallback.rb
+++ b/lib/trmnl/liquid/fallback.rb
@@ -1,17 +1,19 @@
+# frozen_string_literal: true
+
 module TRMNL
   module Liquid
     # library-native formatting functions that don't rely on ActionView helpers
     module Fallback
-      extend self
+      module_function
 
-      def number_with_delimiter(number, delimiter, separator)
+      def number_with_delimiter number, delimiter, separator
         str = number.to_s
 
         # return early if it's not a simple numeric-like string
         return str unless str.match?(/\A-?\d+(\.\d+)?\z/)
 
-        integer, fractional = str.split('.')
-        negative = integer.start_with?('-')
+        integer, fractional = str.split "."
+        negative = integer.start_with? "-"
         integer = integer[1..] if negative
 
         integer_with_delimiters = integer.reverse.scan(/\d{1,3}/).join(delimiter).reverse
@@ -24,38 +26,37 @@ module TRMNL
         end
       end
 
-      def number_to_currency(number, unit, delimiter, separator, precision)
-        result = number_with_delimiter(number, delimiter, separator)
-        dollars, cents = result.split(separator)
+      def number_to_currency number, unit, delimiter, separator, precision
+        result = number_with_delimiter number, delimiter, separator
+        dollars, cents = result.split separator
 
         if precision <= 0
           "#{unit}#{dollars}"
         else
-          cents = cents.to_s[0..(precision - 1)].ljust(precision, '0')
+          cents = cents.to_s[0..(precision - 1)].ljust precision, "0"
           "#{unit}#{dollars}#{separator}#{cents}"
         end
       end
 
-      def ordinalize(number)
-        suffix =
-          if (11..13).include?(number % 100)
-            'th'
-          else
-            case number % 10
-            when 1 then 'st'
-            when 2 then 'nd'
-            when 3 then 'rd'
-            else 'th'
-            end
-          end
+      def ordinalize number
+        suffix = if (11..13).include? number % 100
+                   "th"
+                 else
+                   case number % 10
+                     when 1 then "st"
+                     when 2 then "nd"
+                     when 3 then "rd"
+                     else "th"
+                   end
+                 end
 
         "#{number}#{suffix}"
       end
 
-      def pluralize(count, singular, plural)
+      def pluralize count, singular, plural
         plural ||= "#{singular}s"
-        count == 1 ? "1 #{singular}"  : "#{count} #{plural}"
+        count == 1 ? "1 #{singular}" : "#{count} #{plural}"
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/trmnl/liquid/file_system.rb b/lib/trmnl/liquid/file_system.rb
index 1b0f652..472a46c 100644
--- a/lib/trmnl/liquid/file_system.rb
+++ b/lib/trmnl/liquid/file_system.rb
@@ -1,21 +1,25 @@
+# frozen_string_literal: true
+
 module TRMNL
   module Liquid
-    # This in-memory "file system" is the backing storage for custom templates defined {% template [name] %} tags.
+    # This in-memory "file system" is the backing storage for custom templates
+    # defined {% template [name] %} tags.
     class FileSystem < ::Liquid::BlankFileSystem
       def initialize
         super
         @templates = {}
       end
 
-      # called by Markup::LiquidTemplateTag to save users' custom shared templates via our custom {% template %} tag
-      def register(name, body)
+      # called by Markup::LiquidTemplateTag to save users' custom shared templates via our
+      # custom {% template %} tag
+      def register name, body
         @templates[name] = body
       end
 
       # called by ::Liquid::Template for {% render 'foo' %} when rendering screen markup
-      def read_template_file(name)
-        @templates[name] || raise(::Liquid::FileSystemError, "Template not found: #{name}")
+      def read_template_file name
+        @templates[name] || fail(::Liquid::FileSystemError, "Template not found: #{name}")
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/trmnl/liquid/filters.rb b/lib/trmnl/liquid/filters.rb
index cc2157e..c89793d 100644
--- a/lib/trmnl/liquid/filters.rb
+++ b/lib/trmnl/liquid/filters.rb
@@ -1,11 +1,13 @@
-require 'date'
-require 'json'
-require 'redcarpet'
-require 'tzinfo'
-require 'rqrcode'
-require 'securerandom'
+# frozen_string_literal: true
 
-require_relative 'fallback'
+require "date"
+require "json"
+require "redcarpet"
+require "rqrcode"
+require "securerandom"
+require "tzinfo"
+
+require_relative "fallback"
 
 # optional
 %w[
@@ -13,195 +15,196 @@ require_relative 'fallback'
   action_view
   active_support/core_ext/integer/inflections
 ].each do |lib|
-  begin
-    require lib
-  rescue LoadError
-    nil
-  end
+  require lib
+rescue LoadError
+  nil
 end
 
 module TRMNL
   module Liquid
     module Filters
-      def append_random(var)
-        "#{var}#{SecureRandom.hex(2)}"
+      def append_random var
+        "#{var}#{SecureRandom.hex 2}"
       end
 
-      def days_ago(num, tz = 'Etc/UTC')
-        tzinfo = TZInfo::Timezone.get(tz)
+      def days_ago num, tz = "Etc/UTC"
+        tzinfo = TZInfo::Timezone.get tz
         tzinfo.now.to_date - num.to_i
       end
 
-      def group_by(collection, key)
+      def group_by collection, key
         collection.group_by { |obj| obj[key] }
       end
 
-      def find_by(collection, key, value, fallback = nil)
+      def find_by collection, key, value, fallback = nil
         collection.find { |obj| obj[key] == value } || fallback
       end
 
-      def markdown_to_html(markdown)
-        markdown ||= ''
-        renderer = Redcarpet::Render::HTML.new(_render_options = {})
-        service = Redcarpet::Markdown.new(renderer, _extensions = {})
-        service.render(markdown)
+      def markdown_to_html markdown
+        markdown ||= ""
+        renderer = Redcarpet::Render::HTML.new _render_options = {}
+        service = Redcarpet::Markdown.new renderer, _extensions = {}
+        service.render markdown
       end
 
-      def number_with_delimiter(number, delimiter = ',', separator = '.')
-        if helpers.respond_to?(:number_with_delimiter)
-          helpers.number_with_delimiter(number, delimiter: delimiter, separator: separator)
+      def number_with_delimiter number, delimiter = ",", separator = "."
+        if helpers.respond_to? :number_with_delimiter
+          helpers.number_with_delimiter number, delimiter: delimiter, separator: separator
         else
-          Fallback.number_with_delimiter(number, delimiter, separator)
+          Fallback.number_with_delimiter number, delimiter, separator
         end
       end
 
-      def number_to_currency(number, unit_or_locale = '$', delimiter = ',', separator = '.', precision = 2)
-        if helpers.respond_to?(:number_to_currency)
-          cur_switcher = with_i18n(:unit) do |i18n|
+      def number_to_currency number,
+                             unit_or_locale = "$",
+                             delimiter = ",",
+                             separator = ".",
+                             precision = 2
+        if helpers.respond_to? :number_to_currency
+          cur_switcher = with_i18n :unit do |i18n|
             i18n.available_locales.include?(unit_or_locale.to_sym) ? :locale : :unit
           end
-          opts = { delimiter:, separator:, precision: }.merge(cur_switcher => unit_or_locale)
+          opts = {delimiter:, separator:, precision:}.merge cur_switcher => unit_or_locale
           helpers.number_to_currency(number, **opts)
         else
-          Fallback.number_to_currency(number, unit_or_locale, delimiter, separator, precision)
+          Fallback.number_to_currency number, unit_or_locale, delimiter, separator, precision
         end
       end
 
-      def l_word(word, locale)
-        with_i18n("custom_plugins.#{word}") do |i18n|
-          i18n.t("custom_plugins.#{word}", locale: locale)
+      def l_word word, locale
+        with_i18n "custom_plugins.#{word}" do |i18n|
+          i18n.t "custom_plugins.#{word}", locale: locale
         end
       end
 
-      def l_date(date, format, locale = 'en')
-        with_i18n(date.to_s) do |i18n|
-          format = format.to_sym unless format.include?('%')
-          i18n.l(to_datetime(date), format: format, locale: locale)
+      def l_date date, format, locale = "en"
+        with_i18n date.to_s do |i18n|
+          format = format.to_sym unless format.include? "%"
+          i18n.l to_datetime(date), format: format, locale: locale
         end
       end
 
-      def map_to_i(collection)
+      def map_to_i collection
         collection.map(&:to_i)
       end
 
-      def pluralize(singular, count, opts = {})
-        plural = opts['plural']
-        locale = opts['locale'] || with_i18n(nil) { |i18n| i18n.locale } || 'en'
+      def pluralize singular, count, opts = {}
+        plural = opts["plural"]
+        locale = opts["locale"] || with_i18n(nil) { |i18n| i18n.locale } || "en"
 
-        if helpers.respond_to?(:pluralize)
-          helpers.pluralize(count, singular, plural: plural, locale: locale) 
+        if helpers.respond_to? :pluralize
+          helpers.pluralize count, singular, plural: plural, locale: locale
         else
-          Fallback.pluralize(count, singular, plural)
+          Fallback.pluralize count, singular, plural
         end
       end
 
-      def json(obj)
-        JSON.generate(obj)
+      def json obj
+        JSON.generate obj
       end
 
-      def parse_json(obj)
-        JSON.parse(obj)
+      def parse_json obj
+        JSON.parse obj
       end
 
       def sample(array) = array.sample
 
       # source: https://github.com/jekyll/jekyll/blob/40ac06ed3e95325a07868dd2ac419e409af823b6/lib/jekyll/filters.rb#L209
-      def where_exp(input, variable, expression)
-        return input unless input.respond_to?(:select)
+      def where_exp input, variable, expression
+        return input unless input.respond_to? :select
 
-        input = input.values if input.is_a?(Hash)
+        input = input.values if input.is_a? Hash
 
-        condition = parse_condition(expression)
+        condition = parse_condition expression
         @context.stack do
           input.select do |object|
             @context[variable] = object
-            condition.evaluate(@context)
+            condition.evaluate @context
           end
         end || []
       end
 
-      def ordinalize(date_str, strftime_exp)
-        date = Date.parse(date_str) 
-        
-        ordinal_day = if date.day.respond_to?(:ordinalize)
+      def ordinalize date_str, strftime_exp
+        date = Date.parse date_str
+
+        ordinal_day = if date.day.respond_to? :ordinalize
                         date.day.ordinalize
                       else
-                        Fallback.ordinalize(date.day)
+                        Fallback.ordinalize date.day
                       end
-        
-        date.strftime(strftime_exp.gsub('<<ordinal_day>>', ordinal_day))
+
+        date.strftime strftime_exp.gsub("<<ordinal_day>>", ordinal_day)
       end
 
-      def qr_code(data, size = 11, level = '')
-        level.downcase!
-        level = 'h' unless %w[l m q h].include?(level)
+      def qr_code data, size = 11, level = ""
+        level = "h" unless %w[l m q h].include? level.downcase
 
         qrcode = RQRCode::QRCode.new(data, level:)
         qrcode.as_svg(
-          color: '000',
-          fill: 'fff',
-          shape_rendering: 'crispEdges',
+          color: "000",
+          fill: "fff",
+          shape_rendering: "crispEdges",
           module_size: size,
           standalone: true,
           use_path: true,
           svg_attributes: {
-            class: 'qr-code'
+            class: "qr-code"
           }
         )
       end
 
       private
 
-      def with_i18n(fallback, &block)
+      def with_i18n fallback
         if defined?(::I18n)
-          block.call(::I18n)
+          yield ::I18n
         else
           fallback
         end
       end
 
-      def to_datetime(obj)
+      def to_datetime obj
         case obj
-        when DateTime
-          obj
-        when Date
-          obj.to_datetime
-        when Time
-          DateTime.parse(obj.iso8601)
-        else
-          DateTime.parse(obj.to_s)
+          when DateTime
+            obj
+          when Date
+            obj.to_datetime
+          when Time
+            DateTime.parse(obj.iso8601)
+          else
+            DateTime.parse obj.to_s
         end
       end
 
-      def parse_condition(exp)
-        parser = ::Liquid::Parser.new(exp)
-        condition = parse_binary_comparison(parser)
+      def parse_condition exp
+        parser = ::Liquid::Parser.new exp
+        condition = parse_binary_comparison parser
 
-        parser.consume(:end_of_string)
+        parser.consume :end_of_string
         condition
       end
 
-      def parse_binary_comparison(parser)
-        condition = parse_comparison(parser)
+      def parse_binary_comparison parser
+        condition = parse_comparison parser
         first_condition = condition
-        while (binary_operator = parser.id?('and') || parser.id?('or'))
-          child_condition = parse_comparison(parser)
-          condition.send(binary_operator, child_condition)
+        while (binary_operator = parser.id?("and") || parser.id?("or"))
+          child_condition = parse_comparison parser
+          condition.send binary_operator, child_condition
           condition = child_condition
         end
         first_condition
       end
 
-      def parse_comparison(parser)
-        left_operand = ::Liquid::Expression.parse(parser.expression)
-        operator     = parser.consume?(:comparison)
+      def parse_comparison parser
+        left_operand = ::Liquid::Expression.parse parser.expression
+        operator     = parser.consume? :comparison
 
         # No comparison-operator detected. Initialize a Liquid::Condition using only left operand
-        return ::Liquid::Condition.new(left_operand) unless operator
+        return ::Liquid::Condition.new left_operand unless operator
 
         # Parse what remained after extracting the left operand and the `:comparison` operator
         # and initialize a Liquid::Condition object using the operands and the comparison-operator
-        ::Liquid::Condition.new(left_operand, operator, ::Liquid::Expression.parse(parser.expression))
+        ::Liquid::Condition.new left_operand, operator, ::Liquid::Expression.parse(parser.expression)
       end
 
       class Helpers
@@ -209,11 +212,9 @@ module TRMNL
           ::ActionView::Helpers::TextHelper
           ::ActionView::Helpers::NumberHelper
         ].each do |name|
-          begin
-            include Object.const_get(name)
-          rescue NameError
-            next
-          end
+          include Object.const_get(name)
+        rescue NameError
+          next
         end
       end
 
diff --git a/lib/trmnl/liquid/template_tag.rb b/lib/trmnl/liquid/template_tag.rb
index d5f7ce2..b221a9a 100644
--- a/lib/trmnl/liquid/template_tag.rb
+++ b/lib/trmnl/liquid/template_tag.rb
@@ -1,18 +1,21 @@
+# frozen_string_literal: true
+
 module TRMNL
   module Liquid
-    # The {% template [name] %} tag block is used in conjunction with InlineTemplatesFileSystem to allow users to define
-    # custom templates within the context of the current Liquid template. Generally speaking, they will define their own
-    # templates in the "shared" markup content, which is prepended to the individual screen templates before rendering.
+    # The {% template [name] %} tag block is used in conjunction with InlineTemplatesFileSystem to
+    # allow users to define custom templates within the context of the current Liquid template.
+    # Generally speaking, they will define their own templates in the "shared" markup content,
+    # which is prepended to the individual screen templates before rendering.
     class TemplateTag < ::Liquid::Block
-      NAME_REGEX = %r{\A[a-zA-Z0-9_/]+\z}
+      NAME_REGEX = %r(\A[a-zA-Z0-9_/]+\z)
 
-      def initialize(tag_name, markup, options)
+      def initialize tag_name, markup, options
         super
         @name = markup.strip
       end
 
-      def parse(tokens)
-        @body = ""
+      def parse tokens
+        @body = +""
         while (token = tokens.shift)
           break if token.strip == "{% endtemplate %}"
 
@@ -20,14 +23,14 @@ module TRMNL
         end
       end
 
-      def render(context)
-        unless @name =~ NAME_REGEX
+      def render context
+        unless NAME_REGEX.match? @name
           return "Liquid error: invalid template name #{@name.inspect} - template names must contain only letters, numbers, underscores, and slashes"
         end
 
-        context.registers[:file_system].register(@name, @body.strip)
-        ''
+        context.registers[:file_system].register @name, @body.strip
+        ""
       end
     end
   end
-end
\ No newline at end of file
+end