diff --git a/.dockerdev/.bashrc b/.dockerdev/.bashrc
deleted file mode 100644
index 4f233c53..00000000
--- a/.dockerdev/.bashrc
+++ /dev/null
@@ -1 +0,0 @@
-alias be="bundle exec"
diff --git a/.dockerdev/.psqlrc b/.dockerdev/.psqlrc
deleted file mode 100644
index 57ea736f..00000000
--- a/.dockerdev/.psqlrc
+++ /dev/null
@@ -1,26 +0,0 @@
--- Don't display the "helpful" message on startup.
-\set QUIET 1
-
--- Allow specifying the path to history file via `PSQL_HISTFILE` env variable
--- (and fallback to the default $HOME/.psql_history otherwise)
-\set HISTFILE `[[ -z $PSQL_HISTFILE ]] && echo $HOME/.psql_history || echo $PSQL_HISTFILE`
-
--- Show how long each query takes to execute
-\timing
-
--- Use best available output format
-\x auto
-
--- Verbose error reports
-\set VERBOSITY verbose
-
--- If a command is run more than once in a row,
--- only store it once in the history
-\set HISTCONTROL ignoredups
-\set COMP_KEYWORD_CASE upper
-
--- By default, NULL displays as an empty space. Is it actually an empty
--- string, or is it null? This makes that distinction visible
-\pset null '[NULL]'
-
-\unset QUIET
diff --git a/.dockerdev/Aptfile b/.dockerdev/Aptfile
deleted file mode 100644
index f027e0d4..00000000
--- a/.dockerdev/Aptfile
+++ /dev/null
@@ -1 +0,0 @@
-vim
diff --git a/.dockerdev/Dockerfile b/.dockerdev/Dockerfile
deleted file mode 100644
index 2c9f6e53..00000000
--- a/.dockerdev/Dockerfile
+++ /dev/null
@@ -1,75 +0,0 @@
-ARG RUBY_VERSION
-ARG DISTRO_NAME=bullseye
-
-FROM ruby:$RUBY_VERSION-slim-$DISTRO_NAME
-
-ARG DISTRO_NAME
-
-# Common dependencies
-# Using --mount to speed up build with caching, see https://github.com/moby/buildkit/blob/master/frontend/dockerfile/docs/reference.md#run---mount
-RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
-  --mount=type=cache,target=/var/lib/apt,sharing=locked \
-  --mount=type=tmpfs,target=/var/log \
-  rm -f /etc/apt/apt.conf.d/docker-clean; \
-  echo 'Binary::apt::APT::Keep-Downloaded-Packages "true";' > /etc/apt/apt.conf.d/keep-cache; \
-  apt-get update -qq && \
-  DEBIAN_FRONTEND=noninteractive apt-get -yq dist-upgrade && \
-  DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends \
-    build-essential \
-    gnupg2 \
-    curl \
-    less \
-    git
-
-ARG PG_MAJOR
-RUN curl -sSL https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmor -o /usr/share/keyrings/postgres-archive-keyring.gpg \
-  && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/postgres-archive-keyring.gpg] https://apt.postgresql.org/pub/repos/apt/" \
-    $DISTRO_NAME-pgdg main $PG_MAJOR | tee /etc/apt/sources.list.d/postgres.list > /dev/null
-RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
-  --mount=type=cache,target=/var/lib/apt,sharing=locked \
-  --mount=type=tmpfs,target=/var/log \
-  apt-get update -qq && DEBIAN_FRONTEND=noninteractive apt-get -yq dist-upgrade && \
-  DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends \
-    libpq-dev \
-    postgresql-client-$PG_MAJOR
-
-ARG NODE_MAJOR
-RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
-  --mount=type=cache,target=/var/lib/apt,sharing=locked \
-  --mount=type=tmpfs,target=/var/log \
-  curl -sL https://deb.nodesource.com/setup_$NODE_MAJOR.x | bash - && \
-  DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends \
-    nodejs
-
-ARG YARN_VERSION=latest
-RUN npm install -g yarn@$YARN_VERSION
-
-# Application dependencies
-# We use an external Aptfile for this, stay tuned
-RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
-    --mount=type=cache,target=/var/lib/apt,sharing=locked \
-    --mount=type=tmpfs,target=/var/log \
-    --mount=type=bind,source=Aptfile,target=/tmp/Aptfile \
-    DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends \
-      $(grep -Ev '^\s*#' /tmp/Aptfile | xargs)
-
-# Configure bundler
-ENV LANG=C.UTF-8 \
-  BUNDLE_JOBS=4 \
-  BUNDLE_RETRY=3
-
-# Store Bundler settings in the project's root
-ENV BUNDLE_APP_CONFIG=.bundle
-
-# Upgrade RubyGems and install latest Bundler
-RUN gem update --system && \
-    gem install bundler
-
-# Create a directory for the app code
-RUN mkdir -p /app
-WORKDIR /app
-
-# Document that we're going to expose port 3000
-EXPOSE 3000
-# Use Bash as the default command
-CMD ["/usr/bin/bash"]
diff --git a/.dockerdev/compose.yml b/.dockerdev/compose.yml
deleted file mode 100644
index 560b46c2..00000000
--- a/.dockerdev/compose.yml
+++ /dev/null
@@ -1,200 +0,0 @@
-x-app: &app
-  build:
-    context: .
-    args:
-      RUBY_VERSION: '3.3.0'
-      PG_MAJOR: '16'
-      NODE_MAJOR: '18'
-  environment: &env
-    NODE_ENV: development
-    RAILS_ENV: ${RAILS_ENV:-development}
-  image: anycable-rails-demo-dev:2.3.0
-  tmpfs:
-    - /tmp
-    - /app/tmp/pids
-
-x-backend: &backend
-  <<: *app
-  stdin_open: true
-  tty: true
-  volumes:
-    - ..:/app:cached
-    - rails_cache:/app/tmp/cache
-    - bundle:/usr/local/bundle
-    - node_modules:/app/node_modules
-    - assets:/app/public/assets
-    - assets_builds:/app/app/assets/builds
-    - history:/usr/local/hist
-    - .psqlrc:/root/.psqlrc:ro
-    - .bashrc:/root/.bashrc:ro
-  environment: &backend_environment
-    <<: *env
-    REDIS_URL: redis://redis:6379/
-    DATABASE_URL: postgres://postgres:postgres@postgres:5432
-    BOOTSNAP_CACHE_DIR: /usr/local/bundle/_bootsnap
-    WEBPACKER_DEV_SERVER_HOST: webpacker
-    WEB_CONCURRENCY: 1
-    HISTFILE: /usr/local/hist/.bash_history
-    PSQL_HISTFILE: /usr/local/hist/.psql_history
-    IRB_HISTFILE: /usr/local/hist/.irb_history
-    ACTION_CABLE_ADAPTER: ${ACTION_CABLE_ADAPTER:-anycable}
-    ANYCABLE_RPC_HOST: 0.0.0.0:50051
-    ANYCABLE_BROADCAST_ADAPTER: http
-    ANYCABLE_HTTP_BROADCAST_URL: http://ws:8090/_broadcast
-    CHROME_URL: ${CHROME_URL:-http://chrome:3333}
-    EDITOR: vi
-    LOG: ${LOG:-0}
-  depends_on: &backend_depends_on
-    postgres:
-      condition: service_healthy
-    redis:
-      condition: service_healthy
-
-services:
-  rails:
-    <<: *backend
-    command: bundle exec rails
-
-  web:
-    <<: *backend
-    command: bundle exec rails server -b 0.0.0.0
-    ports:
-      - '3000:3000'
-    depends_on:
-      <<: *backend_depends_on
-      css:
-        condition: service_started
-      js:
-        condition: service_started
-      ws:
-        condition: service_started
-      anycable:
-        condition: service_started
-
-  # Separate definition for system tests to add Chrome as a dependency
-  rspec_system:
-    <<: *backend
-    ports:
-      - '3001:3001'
-      - '50051'
-    environment:
-      <<: *backend_environment
-      APP_HOST: ${APP_HOST:-anycable.test}
-      ANYCABLE_RPC_HOST: 0.0.0.0:50051
-      ANYCABLE_HTTP_BROADCAST_URL: http://ws.anycable.test:8090/_broadcast
-      ANYCABLE_WEBSOCKET_URL: ${ANYCABLE_WEBSOCKET_URL:-ws://ws.anycable.test:8081/cable}
-    depends_on:
-      <<: *backend_depends_on
-      chrome:
-        condition: service_started
-      ws_test:
-        condition: service_started
-    networks:
-      default:
-        aliases:
-          - anycable.test
-
-  ws: &ws
-    image: anycable/anycable-go:1.5
-    ports:
-      - '8080:8080'
-    environment: &ws_environment
-      ANYCABLE_HOST: "0.0.0.0"
-      ANYCABLE_PORT: 8080
-      ANYCABLE_REDIS_URL: redis://redis:6379/0
-      ANYCABLE_RPC_HOST: anycable:50051
-      ANYCABLE_BROADCAST_ADAPTER: http
-      ANYCABLE_PUBSUB: redis
-      ANYCABLE_BROKER: memory
-      ANYCABLE_DEBUG: ${ANYCABLE_DEBUG:-1}
-    depends_on:
-      redis:
-        condition: service_healthy
-
-  ws_test:
-    <<: *ws
-    ports:
-      - '8081:8081'
-    environment:
-      <<: *ws_environment
-      ANYCABLE_PORT: "8081"
-      # Disable broker to avoid race conditions when
-      # we load history since from previous examples
-      ANYCABLE_BROKER: ""
-      ANYCABLE_RPC_HOST: anycable.test:50051
-    networks:
-      default:
-        aliases:
-          - ws.anycable.test
-
-  anycable:
-    <<: *backend
-    command: bundle exec anycable
-    environment:
-      <<: *backend_environment
-      ANYCABLE_REDIS_URL: redis://redis:6379/0
-      ANYCABLE_RPC_HOST: 0.0.0.0:50051
-      ANYCABLE_DEBUG: ${ANYCABLE_DEBUG:-1}
-    ports:
-      - '50051'
-    depends_on:
-      <<: *backend_depends_on
-      ws:
-        condition: service_started
-
-  css:
-    <<: *backend
-    command: yarn build:css --watch
-
-  js:
-    <<: *backend
-    command: yarn build --watch
-
-  postgres:
-    image: postgres:16.0
-    volumes:
-      - .psqlrc:/root/.psqlrc:ro
-      - postgres:/var/lib/postgresql/data
-      - history:/user/local/hist
-    environment:
-      POSTGRES_PASSWORD: postgres
-      PSQL_HISTFILE: /user/local/hist/.psql_history
-    ports:
-      - 5432
-    healthcheck:
-      test: pg_isready -U postgres -h 127.0.0.1
-      interval: 5s
-
-  redis:
-    image: redis:6.2-alpine
-    volumes:
-      - redis:/data
-    ports:
-      - 6379
-    healthcheck:
-      test: redis-cli ping
-      interval: 1s
-      timeout: 3s
-      retries: 30
-
-  chrome:
-    # Currently, Apple M1 is only supported in unnumbered "latest" versions.
-    # See https://github.com/browserless/chrome/issues/1393
-    image: browserless/chrome:latest
-    ports:
-      - '3333:3333'
-    environment:
-      PORT: 3333
-      # Set connection timeout for debugging
-      # https://docs.browserless.io/docs/docker.html#connection-timeout
-      CONNECTION_TIMEOUT: 600000
-
-volumes:
-  postgres:
-  redis:
-  bundle:
-  node_modules:
-  rails_cache:
-  history:
-  assets:
-  assets_builds:
diff --git a/.github/workflows/system_test.yml b/.github/workflows/system_test.yml
index a48bfd08..f64e3667 100644
--- a/.github/workflows/system_test.yml
+++ b/.github/workflows/system_test.yml
@@ -14,41 +14,16 @@ jobs:
       BUNDLE_RETRY: 3
       BUNDLE_FROZEN: true
       CI: true
-      DATABASE_URL: postgres://postgres:postgres@localhost:5432
-      CHROME_URL: http://localhost:3000
-      ANYCABLE_RPC_HOST: 0.0.0.0:50051
       RAILS_ENV: test
-    services:
-      postgres:
-        image: postgres:16.0
-        env:
-          POSTGRES_PASSWORD: postgres
-        ports: ["5432:5432"]
-        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
-      redis:
-        image: redis:6.2-alpine
-        ports: ["6379:6379"]
-        options: --health-cmd="redis-cli ping" --health-interval 1s --health-timeout 3s --health-retries 30
-      chrome:
-        image: browserless/chrome:latest
-        ports: ["3000:3000"]
-        options: -e CONNECTION_TIMEOUT=600000 -e PORT=3000
-      anycable:
-        image: anycable/anycable-go:1.5.0
-        ports: ["8080:8080"]
-        options: --add-host=host.docker.internal:host-gateway
-        env:
-          ANYCABLE_HOST: "0.0.0.0"
-          ANYCABLE_REDIS_URL: redis://host.docker.internal:6379/0
-          ANYCABLE_RPC_HOST: host.docker.internal:50051
     steps:
-      - uses: actions/checkout@v3
-      - name: Install PostgreSQL client
+      - uses: actions/checkout@v2
+      - name: Install libsqlite3
         run: |
-          sudo apt-get -yqq install libpq-dev
+          sudo apt-get update
+          sudo apt-get install libsqlite3-dev
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3.0
+          ruby-version: 3.2.2
           bundler-cache: true
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
@@ -66,8 +41,8 @@ jobs:
       - name: Run RSpec
         run: |
           bundle exec rails db:test:prepare
-          export ANYCABLE_WEBSOCKET_URL="ws://$(hostname):8080/cable"
           bundle exec rspec --tag type:system --force-color
+
   wsdirector:
     runs-on: ubuntu-latest
     env:
@@ -75,44 +50,34 @@ jobs:
       BUNDLE_RETRY: 3
       BUNDLE_FROZEN: true
       CI: true
-      DATABASE_URL: postgres://postgres:postgres@localhost:5432
-      ANYCABLE_RPC_HOST: 0.0.0.0:50051
-      RAILS_ENV: test
+      RAILS_ENV: development
     services:
-      postgres:
-        image: postgres:16.0
-        env:
-          POSTGRES_PASSWORD: postgres
-        ports: ["5432:5432"]
-        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
-      redis:
-        image: redis:6.2-alpine
-        ports: ["6379:6379"]
-        options: --health-cmd="redis-cli ping" --health-interval 1s --health-timeout 3s --health-retries 30
       anycable:
         image: anycable/anycable-go:1.5.0
-        ports: ["8080:8080"]
+        ports:
+          - 8080:8080
+          - 8090:8090
         options: --add-host=host.docker.internal:host-gateway
         env:
           ANYCABLE_HOST: "0.0.0.0"
-          ANYCABLE_REDIS_URL: redis://host.docker.internal:6379/0
-          ANYCABLE_RPC_HOST: host.docker.internal:50051
+          ANYCABLE_RPC_HOST: http://host.docker.internal:3000/_anycable
+          ANYCABLE_BROADCAST_ADAPTER: http
           ANYCABLE_DEBUG: "true"
     steps:
       - uses: actions/checkout@v3
-      - name: Install PostgreSQL client
+      - name: Install libsqlite3
         run: |
-          sudo apt-get -yqq install libpq-dev
+          sudo apt-get update
+          sudo apt-get install libsqlite3-dev
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3.0
+          ruby-version: 3.2.2
           bundler-cache: true
       - name: Run WebSocket Director scenarios
         run: |
-          bundle exec rails db:test:prepare
+          bundle exec rails db:prepare
           bundle exec rails db:seed
-          mkdir -p tmp/pids
-          bundle exec anycabled start
+          bundle exec rails server -b 0.0.0.0 -d
           sleep 10
           gem install wsdirector-cli
           wsdirector etc/wsdirector/chat.yml localhost:8080/cable -c -vv
diff --git a/.github/workflows/unit_test.yml b/.github/workflows/unit_test.yml
index e7989362..7ddcb19d 100644
--- a/.github/workflows/unit_test.yml
+++ b/.github/workflows/unit_test.yml
@@ -14,28 +14,18 @@ jobs:
       BUNDLE_RETRY: 3
       BUNDLE_FROZEN: true
       CI: true
-      DATABASE_URL: postgres://postgres:postgres@localhost:5432
       RAILS_ENV: test
-    services:
-      postgres:
-        image: postgres:16.0
-        ports: ["5432:5432"]
-        env:
-          POSTGRES_PASSWORD: postgres
-        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
-      redis:
-        image: redis:6.2-alpine
-        ports: ["6379:6379"]
-        options: --health-cmd="redis-cli ping" --health-interval 1s --health-timeout 3s --health-retries 30
     steps:
-      - uses: actions/checkout@v3
-      - name: Install PostgreSQL client
+      - uses: actions/checkout@v2
+      - name: Install libsqlite3
         run: |
-          sudo apt-get -yqq install libpq-dev
+          sudo apt-get update
+          sudo apt-get install libsqlite3-dev
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3.0
+          ruby-version: 3.2.2
           bundler-cache: true
+          bundler-version: 2.4.5
       - name: Run RSpec
         run: |
           bundle exec rails db:test:prepare
diff --git a/.gitignore b/.gitignore
index 5c514e8d..310459a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -34,3 +34,5 @@ yarn-debug.log*
 
 /app/assets/builds/*
 !/app/assets/builds/.keep
+
+bin/dist
diff --git a/Gemfile b/Gemfile
index 965f85d5..908279eb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,10 +1,10 @@
 source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby '~> 3.3.0'
+ruby '~> 3.2.0'
 
 gem 'rails', '~> 7.1.0'
-gem 'pg', '~> 1.0'
+gem 'sqlite3', '~> 1.4'
 gem 'puma', '~> 6.0'
 gem 'redis', '~> 5.0'
 gem 'grpc', '~> 1.37'
@@ -22,16 +22,20 @@ gem 'jsbundling-rails'
 gem 'propshaft'
 
 group :development, :test do
-  gem 'debug', '1.7.0'
+  gem 'debug', '~> 1.9'
   gem 'rspec-rails', '~> 6.0'
 end
 
 group :development do
+  gem 'overmind'
 end
 
 group :test do
   gem 'capybara'
   gem 'cuprite'
 
+  # Rack-based AnyCable server implementation
+  gem 'anycable-rack-server', '~> 0.5'
+
   gem 'test-prof'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 78e79f71..731f06cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -83,10 +83,15 @@ GEM
     anycable-core (1.5.0)
       anyway_config (~> 2.2)
       google-protobuf (~> 3.25)
-    anycable-rails (1.5.0)
+    anycable-rack-server (0.5.1)
+      anycable (> 1.0.99, < 2.0)
+      anyway_config (>= 2.1.0)
+      connection_pool (~> 2.2)
+      websocket (~> 1.2)
+    anycable-rails (1.5.1)
       anycable (~> 1.5.0)
-      anycable-rails-core (= 1.5.0)
-    anycable-rails-core (1.5.0)
+      anycable-rails-core (= 1.5.1)
+    anycable-rails-core (1.5.1)
       actioncable (>= 6.0)
       anycable-core (~> 1.5.0)
       globalid
@@ -117,9 +122,9 @@ GEM
       ferrum (~> 0.14.0)
     daemons (1.4.1)
     date (3.3.4)
-    debug (1.7.0)
-      irb (>= 1.5.0)
-      reline (>= 0.3.1)
+    debug (1.9.2)
+      irb (~> 1.10)
+      reline (>= 0.3.8)
     diff-lcs (1.5.1)
     drb (2.2.1)
     erubi (1.12.0)
@@ -201,11 +206,15 @@ GEM
       racc (~> 1.4)
     nokogiri (1.16.3-x86_64-linux)
       racc (~> 1.4)
+    overmind (2.5.1)
+    overmind (2.5.1-arm-linux)
+    overmind (2.5.1-arm64-darwin)
+    overmind (2.5.1-x86-linux)
+    overmind (2.5.1-x86_64-darwin)
     paco (0.2.3)
     parser (3.3.0.5)
       ast (~> 2.4.1)
       racc
-    pg (1.5.6)
     propshaft (0.8.0)
       actionpack (>= 7.0.0)
       activesupport (>= 7.0.0)
@@ -213,7 +222,7 @@ GEM
       railties (>= 7.0.0)
     psych (5.1.2)
       stringio
-    public_suffix (5.0.4)
+    public_suffix (5.0.5)
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.3)
@@ -291,6 +300,12 @@ GEM
     ruby-next-core (1.0.2)
     ruby-next-parser (3.2.2.0)
       parser (>= 3.0.3.1)
+    sqlite3 (1.7.3-aarch64-linux)
+    sqlite3 (1.7.3-arm-linux)
+    sqlite3 (1.7.3-arm64-darwin)
+    sqlite3 (1.7.3-x86-linux)
+    sqlite3 (1.7.3-x86_64-darwin)
+    sqlite3 (1.7.3-x86_64-linux)
     stringio (3.1.0)
     test-prof (1.3.2)
     thor (1.3.1)
@@ -305,6 +320,7 @@ GEM
       diff-lcs (~> 1.3)
       parser (>= 3.3.0)
     webrick (1.8.1)
+    websocket (1.2.10)
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
@@ -316,33 +332,37 @@ PLATFORMS
   aarch64-linux
   arm-linux
   arm64-darwin
+  arm64-darwin-21
+  arm64-darwin-21
   x86-linux
   x86_64-darwin
   x86_64-linux
 
 DEPENDENCIES
+  anycable-rack-server (~> 0.5)
   anycable-rails (~> 1.5)
   bootsnap (>= 1.4.2)
   capybara
   cssbundling-rails
   cuprite
   daemons (~> 1.3)
-  debug (= 1.7.0)
+  debug (~> 1.9)
   grpc (~> 1.37)
   jsbundling-rails
   nanoid
-  pg (~> 1.0)
+  overmind
   propshaft
   puma (~> 6.0)
   rails (~> 7.1.0)
   redis (~> 5.0)
   rspec-rails (~> 6.0)
   ruby-next (~> 1.0)
+  sqlite3 (~> 1.4)
   test-prof
   turbo-rails
 
 RUBY VERSION
-   ruby 3.3.0p0
+   ruby 3.2.0p0
 
 BUNDLED WITH
-   2.5.7
+   2.4.5
diff --git a/Procfile.dev b/Procfile.dev
new file mode 100644
index 00000000..42284b39
--- /dev/null
+++ b/Procfile.dev
@@ -0,0 +1,4 @@
+server: bundle exec rails s -p 3000
+css: yarn build:css --watch
+js: yarn build --watch
+ws: bin/anycable-go --port=8080 --broadcast_adapter=http --presets=broker --rpc_host=http://localhost:3000/_anycable
diff --git a/README.md b/README.md
index c6bd391c..132143bf 100644
--- a/README.md
+++ b/README.md
@@ -12,56 +12,38 @@ This repository contains the code for AnyCable Rails demo application and its di
 
 ## Installation
 
-This app has a Docker-first configuration based one the [Ruby on Whales post](https://evilmartians.com/chronicles/ruby-on-whales-docker-for-ruby-rails-development).
+This branch has a minimal number of dependencies to make it easier to run the project locally: SQLite instead of Postgres, no Redis, no Docker.
 
-You need:
-
-- Docker installed.
-
-For MacOS just use [official app](https://docs.docker.com/engine/installation/mac/).
-
-- [Dip](https://github.com/bibendi/dip) installed.
-
-Run the following command to build images and provision the application:
+You need Ruby and NodeJS installed on your local machine (and maybe some common system deps for such gems as nokogiri and sqlite3).
 
 ```sh
-dip provision
+bundle install
+yarn install
+bin/setup
 ```
 
 ## Running
 
-You can start Rails server along with AnyCable by running:
+Since you need to run multiple processes (Rails, AnyCable-Go), we recommend using a process manager, e.g., [Hivemind](https://github.com/DarthSim/hivemind):
 
 ```sh
-dip up web
+hivemind Procfile.dev
 ```
 
 Then go to [http://localhost:3000/](http://localhost:3000/) and see the application in action.
 
-## Debugging
-
-If you want to run Rails server and/or with debugging capabilities, run the following commands:
-
-```sh
-# for Rails server
-dip rails s
-```
-
 ## Testing
 
-We separate unit and system specs and provide convenient Dip commands to run them:
+We use RSpec for testing:
 
 ```sh
-# only unit tests
-dip rspec
-
-# only system tests
-dip rspec system
+bundle exec rspec
 ```
 
+**NOTE:** System tests require Chrome browser to be installed on your machine (no other software required).
+
 ## Resources
 
-- [Ruby on Whales](https://evilmartians.com/chronicles/ruby-on-whales-docker-for-ruby-rails-development)—learn about the Docker development setup used for this application.
 - [RuboCoping with legacy](https://evilmartians.com/chronicles/rubocoping-with-legacy-bring-your-ruby-code-up-to-standard)—this is how we configure RuboCop.
 - [Evil Front](https://evilmartians.com/chronicles/evil-front-part-3)—some frontend ideas are borrowed from this post.
 - [Ruby Next](https://evilmartians.com/chronicles/ruby-next-make-all-rubies-quack-alike)—we're using the edge Ruby syntax!
diff --git a/bin/anycable-go b/bin/anycable-go
new file mode 100755
index 00000000..6e167a41
--- /dev/null
+++ b/bin/anycable-go
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+cd $(dirname $0)/..
+
+version="1.5.0"
+
+if [ ! -f ./bin/dist/anycable-go ]; then
+  echo "AnyCable-go is not installed, downloading..."
+  ./bin/rails g anycable:download --version=$version --bin-path=./bin/dist
+fi
+
+curVersion=$(./bin/dist/anycable-go -v)
+
+if [[ "$curVersion" != "$version"* ]]; then
+  echo "AnyCable-go version is not $version, downloading a new one..."
+  ./bin/rails g anycable:download --version=$version --bin-path=./bin/dist
+fi
+
+./bin/dist/anycable-go $@
diff --git a/bin/dev b/bin/dev
new file mode 100755
index 00000000..1aae6408
--- /dev/null
+++ b/bin/dev
@@ -0,0 +1,3 @@
+#!/usr/bin/env sh
+
+bin/overmind start -f Procfile.dev
diff --git a/bin/overmind b/bin/overmind
new file mode 100755
index 00000000..cb365584
--- /dev/null
+++ b/bin/overmind
@@ -0,0 +1,27 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'overmind' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
+
+bundle_binstub = File.expand_path("bundle", __dir__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300).include?("This file was generated by Bundler")
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("overmind", "overmind")
diff --git a/config.ru b/config.ru
index bff88d60..2e030846 100644
--- a/config.ru
+++ b/config.ru
@@ -5,3 +5,4 @@
 require_relative "config/environment"
 
 run Rails.application
+Rails.application.load_server
diff --git a/config/anycable.yml b/config/anycable.yml
index 7348341b..101512d2 100644
--- a/config/anycable.yml
+++ b/config/anycable.yml
@@ -20,8 +20,8 @@ default: &default
   rpc_host: "127.0.0.1:50051"
   # Whether to enable gRPC level logging or not
   log_grpc: false
-  # Use Redis to broadcast messages to AnyCable server
-  broadcast_adapter: redis
+  # Use HTTP adapter for a quick start (since redis gem is not present in the project)
+  broadcast_adapter: http
   # Use the same channel name for WebSocket server, e.g.:
   #   $ anycable-go --redis-channel="__anycable__"
   redis_channel: "__anycable__"
@@ -30,10 +30,12 @@ default: &default
 
 development:
   <<: *default
+  http_rpc_mount_path: "/_anycable"
 
 test:
   <<: *default
   rpc_pool_size: 5
+  http_broadcast_url: "http://localhost:3023/_anycable_rack_broadcast"
 
 production:
   <<: *default
diff --git a/config/database.yml b/config/database.yml
index dfc41703..fb83db45 100644
--- a/config/database.yml
+++ b/config/database.yml
@@ -1,16 +1,16 @@
 default: &default
-  adapter: postgresql
+  adapter: sqlite3
   pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
   url: <%= ENV["DATABASE_URL"] %>
   timeout: 5000
 
 development:
   <<: *default
-  database: any_rails_demo_dev
+  database: db/any_rails_demo_dev.sqlite3
 
 test:
   <<: *default
-  database: any_rails_demo_test
+  database: db/any_rails_demo_test.sqlite3
 
 production:
   <<: *default
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 32b532b2..1784c320 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -36,6 +36,8 @@
   # Raise an error on page load if there are pending migrations.
   config.active_record.migration_error = :page_load
 
+  config.hosts = []
+
   # Highlight code that triggered database queries in logs.
   # config.active_record.verbose_query_logs = true
 
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 8041ce2e..9aa32bae 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -6,15 +6,17 @@
 # and recreated between test runs. Don't rely on the data there!
 
 Rails.application.configure do
-  # Specify AnyCable WebSocket server URL to use by JS client
   config.after_initialize do
-    config.action_cable.url = ActionCable.server.config.url = AnyCable.config.websocket_url
-
     # Make test adapter AnyCable-compatible
     AnyCable::Rails.extend_adapter!(ActionCable.server.pubsub)
   end
 
+  # Specify AnyCable WebSocket server URL to use by JS client
+  config.action_cable.url = "/rack_cable"
+  # Disable built-in Action Cable
   config.action_cable.mount_path = nil
+  # Run AnyCable Rack server at a custom path
+  config.any_cable_rack.mount_path = "/rack_cable"
 
   # Settings specified here will take precedence over those in config/application.rb.
   config.cache_classes = true
diff --git a/db/schema.rb b/db/schema.rb
index fa019da9..7a35f8b4 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,11 +11,8 @@
 # It's strongly recommended that you check this file into your version control system.
 
 ActiveRecord::Schema[7.1].define(version: 2020_05_04_092152) do
-  # These are extensions that must be enabled in order to support this database
-  enable_extension "plpgsql"
-
   create_table "items", force: :cascade do |t|
-    t.bigint "list_id", null: false
+    t.integer "list_id", null: false
     t.text "desc", null: false
     t.boolean "completed", default: false, null: false
     t.datetime "created_at", null: false
@@ -25,7 +22,7 @@
 
   create_table "lists", force: :cascade do |t|
     t.string "name", null: false
-    t.bigint "workspace_id", null: false
+    t.integer "workspace_id", null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.index ["workspace_id"], name: "index_lists_on_workspace_id"
diff --git a/dip.yml b/dip.yml
deleted file mode 100644
index 6170972a..00000000
--- a/dip.yml
+++ /dev/null
@@ -1,87 +0,0 @@
-version: '7.1'
-
-environment:
-  RAILS_ENV: development
-
-compose:
-  files:
-    - .dockerdev/compose.yml
-  project_name: anycable_rails_demo
-
-interaction:
-  runner:
-    description: Open a Bash shell within a Rails container (with dependencies up)
-    service: rails
-    command: /bin/bash
-
-  bash:
-    description: Run an arbitrary script within a container (or open a shell without deps)
-    service: rails
-    command: /bin/bash
-    compose_run_options: [ no-deps ]
-
-  bundle:
-    description: Run Bundler commands
-    service: rails
-    command: bundle
-    compose_run_options: [ no-deps ]
-
-  rspec:
-    description: Run Rspec commands
-    service: rails
-    environment:
-      RAILS_ENV: test
-    command: bundle exec rspec --exclude-pattern 'system/**/*_spec.rb'
-    subcommands:
-      system: &rails_test_system
-        description: Run all Rails system tests
-        service: rspec_system
-        command: bundle exec rspec --pattern 'system/**/*_spec.rb'
-        compose:
-          run_options: [ service-ports, use-aliases ]
-      # Run Chrome via:
-      #   chrome --remote-debugging-port=3333 --no-sandbox --no-startup-window
-      #
-      # NOTE: The command above assumes that you have a `chrome` alias to run Chrome executable.
-      # For example, on MacOS you can add the following to you shell profile:
-      #   alias chrome="/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome"
-      system:local:
-        <<: *rails_test_system
-        description: Run system tests via the local Chrome
-        environment:
-          RAILS_ENV: test
-          CHROME_URL: http://host.docker.internal:3333
-          CABLE_URL: ws://localhost:8081/cable
-          APP_HOST: localhost:3001
-        compose:
-          run_options: [service-ports, use-aliases]
-
-  rails:
-    description: Run Rails commands
-    service: rails
-    command: bundle exec rails
-    subcommands:
-      s:
-        description: Run Rails server at http://localhost:3000
-        service: web
-        compose:
-          run_options: [service-ports, use-aliases]
-
-  yarn:
-    descriptinn: Run yarn commands
-    service: rails
-    command: yarn
-
-  psql:
-    description: Run Postgres psql console
-    service: postgres
-    default_args: anycasts_dev
-    command: psql -h postgres -U postgres
-
-provision:
-  - '[[ "$RESET_DOCKER" == "true" ]] && echo "Re-creating the Docker env from scratch..." && dip compose down --volumes || echo "Re-provisioning the Docker env..."'
-  - dip compose up -d postgres redis
-  - dip bundle install
-  - dip rails db:prepare
-  - dip rails db:test:prepare
-  - echo "🚀 Ready to rock! Run 'dip rails s' to start a Rails web server w/ AnyCable"
diff --git a/etc/wsdirector/chat.yml b/etc/wsdirector/chat.yml
index 27b0ef7a..86575dc6 100644
--- a/etc/wsdirector/chat.yml
+++ b/etc/wsdirector/chat.yml
@@ -14,24 +14,24 @@
           <<: *channel
       - wait_all
       - sleep:
-          time: 3
-          shift: 2
+          time: 2
+          shift: 1
       - perform:
           <<: *channel
           action: speak
           data:
             message: "hello"
       - sleep:
-          time: 4
-          shift: 2
+          time: 2
+          shift: 1
       - perform:
           <<: *channel
           action: speak
           data:
             message: "hello 2"
       - sleep:
-          time: 4
-          shift: 2
+          time: 2
+          shift: 1
       - perform:
           <<: *channel
           action: speak
@@ -53,8 +53,8 @@
           <<: *channel
       - wait_all
       - sleep:
-          time: 3
-          shift: 2
+          time: 4
+          shift: 1
       - receive:
           <<: *channel
           multiplier: ":scale"
@@ -62,7 +62,7 @@
             action: "newMessage"
       - sleep:
           time: 4
-          shift: 2
+          shift: 1
       - receive:
           <<: *channel
           multiplier: ":scale"
@@ -70,7 +70,7 @@
             action: "newMessage"
       - sleep:
           time: 4
-          shift: 2
+          shift: 1
       - receive:
           <<: *channel
           multiplier: ":scale"
@@ -78,4 +78,4 @@
             action: "newMessage"
       - sleep:
           time: 4
-          shift: 2
+          shift: 1
diff --git a/spec/support/login_helpers.rb b/spec/support/login_helpers.rb
index 0d02bb0c..1668335f 100644
--- a/spec/support/login_helpers.rb
+++ b/spec/support/login_helpers.rb
@@ -5,8 +5,7 @@ module System
     def login_user(name)
       page.driver.set_cookie(
         :uid,
-        [name, Nanoid.generate(size: 3)].join("/"),
-        domain: CAPYBARA_COOKIE_DOMAIN
+        [name, Nanoid.generate(size: 3)].join("/")
       )
     end
 
diff --git a/spec/system/support/capybara_setup.rb b/spec/system/support/capybara_setup.rb
index c4363938..6ec75298 100644
--- a/spec/system/support/capybara_setup.rb
+++ b/spec/system/support/capybara_setup.rb
@@ -2,19 +2,6 @@
 
 # Capybara settings (not covered by Rails system tests)
 
-# Make server listening on all hosts
-Capybara.server_host = "0.0.0.0"
-Capybara.server_port = 3001
-# Use a hostname accessible from the outside world
-Capybara.app_host = "http://#{ENV.fetch("APP_HOST", `hostname`.strip&.downcase || "0.0.0.0")}"
-
-# Which domain to use when setting cookies directly in tests.
-CAPYBARA_COOKIE_DOMAIN = URI.parse(Capybara.app_host).host.then do |host|
-  # If host is a top-level domain
-  next host unless host.include?(".")
-  ".#{host}"
-end
-
 # Don't wait too long in `have_xyz` matchers
 Capybara.default_max_wait_time = 2
 
@@ -24,6 +11,9 @@
 # Where to store artifacts (e.g. screenshots, downloaded files, etc.)
 Capybara.save_path = ENV.fetch("CAPYBARA_ARTIFACTS", "./tmp/capybara")
 
+# Use fixed server port to configure AnyCable broadcast url
+Capybara.server_port = 3023
+
 Capybara.singleton_class.prepend(Module.new do
   attr_accessor :last_used_session
 
diff --git a/spec/system/support/cuprite_setup.rb b/spec/system/support/cuprite_setup.rb
index 64d26717..d2a48992 100644
--- a/spec/system/support/cuprite_setup.rb
+++ b/spec/system/support/cuprite_setup.rb
@@ -3,54 +3,19 @@
 # Cuprite is a modern Capybara driver which uses Chrome CDP API
 # instead of Selenium & co.
 # See https://github.com/rubycdp/cuprite
-
-remote_chrome_url = ENV["CHROME_URL"]
-
-# Chrome doesn't allow connecting to CDP by hostnames (other than localhost),
-# but allows using IP addresses.
-if remote_chrome_url&.match?(/host.docker.internal/)
-  require "resolv"
-
-  uri = URI.parse(remote_chrome_url)
-  ip = Resolv.getaddress(uri.host)
-
-  remote_chrome_url = remote_chrome_url.sub("host.docker.internal", ip)
-end
-
-REMOTE_CHROME_URL = remote_chrome_url
-REMOTE_CHROME_HOST, REMOTE_CHROME_PORT =
-  if REMOTE_CHROME_URL
-    URI.parse(REMOTE_CHROME_URL).yield_self do |uri|
-      [uri.host, uri.port]
-    end
-  end
-
-# Check whether the remote chrome is running and configure the Capybara
-# driver for it.
-remote_chrome =
-  begin
-    if REMOTE_CHROME_URL.nil?
-      false
-    else
-      Socket.tcp(REMOTE_CHROME_HOST, REMOTE_CHROME_PORT, connect_timeout: 1).close
-      true
-    end
-  rescue Errno::ECONNREFUSED, Errno::EHOSTUNREACH, SocketError
-    false
-  end
-
-remote_options = remote_chrome ? {url: REMOTE_CHROME_URL} : {}
-
 require "capybara/cuprite"
 
 Capybara.register_driver(:better_cuprite) do |app|
   Capybara::Cuprite::Driver.new(
     app,
-    **{
-      window_size: [1200, 800],
-      browser_options: remote_chrome ? {"no-sandbox" => nil} : {},
-      inspector: true
-    }.merge(remote_options)
+    window_size: [1200, 800],
+    browser_options: {},
+    # Increase Chrome startup timeout for CI
+    process_timeout: 10,
+    inspector: true,
+    # Allow running Chrome in a headful mode by setting HEADLESS env
+    # var to a falsey value
+    headless: !ENV["HEADLESS"].in?(%w[n 0 no false])
   )
 end
 
@@ -63,7 +28,7 @@ def pause
   end
 
   def debug(binding = nil)
-    $stdout.puts "🔎 Open Chrome inspector at http://localhost:3333"
+    $stdout.puts "🔎 Open Chrome inspector at http://localhost:#{Capybara.server_port}"
     return binding.break if binding
     page.driver.pause
   end