diff --git a/pkgs/by-name/pg/pghero/Gemfile b/pkgs/by-name/pg/pghero/Gemfile
new file mode 100644
index 000000000000..ab0039625a89
--- /dev/null
+++ b/pkgs/by-name/pg/pghero/Gemfile
@@ -0,0 +1,14 @@
+source "https://rubygems.org"
+
+gem "rails", "~> 7.0.0"
+gem "propshaft"
+gem "puma"
+gem "pg"
+gem "activerecord-nulldb-adapter", require: false
+
+# See also https://github.com/ankane/pghero/blob/v3.3.4/guides/Rails.md
+gem "pghero"
+gem "pg_query"
+gem "aws-sdk-cloudwatch"
+gem "google-apis-monitoring_v3"
+gem "azure_mgmt_monitor"
diff --git a/pkgs/by-name/pg/pghero/Gemfile.lock b/pkgs/by-name/pg/pghero/Gemfile.lock
new file mode 100644
index 000000000000..df92af192636
--- /dev/null
+++ b/pkgs/by-name/pg/pghero/Gemfile.lock
@@ -0,0 +1,280 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actioncable (7.0.8.3)
+      actionpack (= 7.0.8.3)
+      activesupport (= 7.0.8.3)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+    actionmailbox (7.0.8.3)
+      actionpack (= 7.0.8.3)
+      activejob (= 7.0.8.3)
+      activerecord (= 7.0.8.3)
+      activestorage (= 7.0.8.3)
+      activesupport (= 7.0.8.3)
+      mail (>= 2.7.1)
+      net-imap
+      net-pop
+      net-smtp
+    actionmailer (7.0.8.3)
+      actionpack (= 7.0.8.3)
+      actionview (= 7.0.8.3)
+      activejob (= 7.0.8.3)
+      activesupport (= 7.0.8.3)
+      mail (~> 2.5, >= 2.5.4)
+      net-imap
+      net-pop
+      net-smtp
+      rails-dom-testing (~> 2.0)
+    actionpack (7.0.8.3)
+      actionview (= 7.0.8.3)
+      activesupport (= 7.0.8.3)
+      rack (~> 2.0, >= 2.2.4)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.2.0)
+    actiontext (7.0.8.3)
+      actionpack (= 7.0.8.3)
+      activerecord (= 7.0.8.3)
+      activestorage (= 7.0.8.3)
+      activesupport (= 7.0.8.3)
+      globalid (>= 0.6.0)
+      nokogiri (>= 1.8.5)
+    actionview (7.0.8.3)
+      activesupport (= 7.0.8.3)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.1, >= 1.2.0)
+    activejob (7.0.8.3)
+      activesupport (= 7.0.8.3)
+      globalid (>= 0.3.6)
+    activemodel (7.0.8.3)
+      activesupport (= 7.0.8.3)
+    activerecord (7.0.8.3)
+      activemodel (= 7.0.8.3)
+      activesupport (= 7.0.8.3)
+    activerecord-nulldb-adapter (1.0.1)
+      activerecord (>= 5.2.0, < 7.2)
+    activestorage (7.0.8.3)
+      actionpack (= 7.0.8.3)
+      activejob (= 7.0.8.3)
+      activerecord (= 7.0.8.3)
+      activesupport (= 7.0.8.3)
+      marcel (~> 1.0)
+      mini_mime (>= 1.1.0)
+    activesupport (7.0.8.3)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
+    addressable (2.8.6)
+      public_suffix (>= 2.0.2, < 6.0)
+    aws-eventstream (1.3.0)
+    aws-partitions (1.935.0)
+    aws-sdk-cloudwatch (1.91.0)
+      aws-sdk-core (~> 3, >= 3.193.0)
+      aws-sigv4 (~> 1.1)
+    aws-sdk-core (3.196.1)
+      aws-eventstream (~> 1, >= 1.3.0)
+      aws-partitions (~> 1, >= 1.651.0)
+      aws-sigv4 (~> 1.8)
+      jmespath (~> 1, >= 1.6.1)
+    aws-sigv4 (1.8.0)
+      aws-eventstream (~> 1, >= 1.0.2)
+    azure_mgmt_monitor (0.19.0)
+      ms_rest_azure (~> 0.12.0)
+    base64 (0.2.0)
+    bigdecimal (3.1.8)
+    builder (3.2.4)
+    concurrent-ruby (1.2.3)
+    crass (1.0.6)
+    date (3.3.4)
+    declarative (0.0.20)
+    domain_name (0.6.20240107)
+    erubi (1.12.0)
+    faraday (1.10.3)
+      faraday-em_http (~> 1.0)
+      faraday-em_synchrony (~> 1.0)
+      faraday-excon (~> 1.1)
+      faraday-httpclient (~> 1.0)
+      faraday-multipart (~> 1.0)
+      faraday-net_http (~> 1.0)
+      faraday-net_http_persistent (~> 1.0)
+      faraday-patron (~> 1.0)
+      faraday-rack (~> 1.0)
+      faraday-retry (~> 1.0)
+      ruby2_keywords (>= 0.0.4)
+    faraday-cookie_jar (0.0.7)
+      faraday (>= 0.8.0)
+      http-cookie (~> 1.0.0)
+    faraday-em_http (1.0.0)
+    faraday-em_synchrony (1.0.0)
+    faraday-excon (1.1.0)
+    faraday-httpclient (1.0.1)
+    faraday-multipart (1.0.4)
+      multipart-post (~> 2)
+    faraday-net_http (1.0.1)
+    faraday-net_http_persistent (1.2.0)
+    faraday-patron (1.0.0)
+    faraday-rack (1.0.0)
+    faraday-retry (1.0.3)
+    globalid (1.2.1)
+      activesupport (>= 6.1)
+    google-apis-core (0.15.0)
+      addressable (~> 2.5, >= 2.5.1)
+      googleauth (~> 1.9)
+      httpclient (>= 2.8.1, < 3.a)
+      mini_mime (~> 1.0)
+      representable (~> 3.0)
+      retriable (>= 2.0, < 4.a)
+      rexml
+    google-apis-monitoring_v3 (0.62.0)
+      google-apis-core (>= 0.15.0, < 2.a)
+    google-cloud-env (2.1.1)
+      faraday (>= 1.0, < 3.a)
+    google-protobuf (4.27.0)
+      bigdecimal
+      rake (>= 13)
+    googleauth (1.11.0)
+      faraday (>= 1.0, < 3.a)
+      google-cloud-env (~> 2.1)
+      jwt (>= 1.4, < 3.0)
+      multi_json (~> 1.11)
+      os (>= 0.9, < 2.0)
+      signet (>= 0.16, < 2.a)
+    http-cookie (1.0.5)
+      domain_name (~> 0.5)
+    httpclient (2.8.3)
+    i18n (1.14.5)
+      concurrent-ruby (~> 1.0)
+    jmespath (1.6.2)
+    jwt (2.8.1)
+      base64
+    loofah (2.22.0)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.12.0)
+    mail (2.8.1)
+      mini_mime (>= 0.1.1)
+      net-imap
+      net-pop
+      net-smtp
+    marcel (1.0.4)
+    method_source (1.1.0)
+    mini_mime (1.1.5)
+    mini_portile2 (2.8.6)
+    minitest (5.23.1)
+    ms_rest (0.7.6)
+      concurrent-ruby (~> 1.0)
+      faraday (>= 0.9, < 2.0.0)
+      timeliness (~> 0.3.10)
+    ms_rest_azure (0.12.0)
+      concurrent-ruby (~> 1.0)
+      faraday (>= 0.9, < 2.0.0)
+      faraday-cookie_jar (~> 0.0.6)
+      ms_rest (~> 0.7.6)
+    multi_json (1.15.0)
+    multipart-post (2.4.1)
+    net-imap (0.4.11)
+      date
+      net-protocol
+    net-pop (0.1.2)
+      net-protocol
+    net-protocol (0.2.2)
+      timeout
+    net-smtp (0.5.0)
+      net-protocol
+    nio4r (2.7.3)
+    nokogiri (1.16.5)
+      mini_portile2 (~> 2.8.2)
+      racc (~> 1.4)
+    os (1.1.4)
+    pg (1.5.6)
+    pg_query (5.1.0)
+      google-protobuf (>= 3.22.3)
+    pghero (3.5.0)
+      activerecord (>= 6)
+    propshaft (0.9.0)
+      actionpack (>= 7.0.0)
+      activesupport (>= 7.0.0)
+      rack
+      railties (>= 7.0.0)
+    public_suffix (5.0.5)
+    puma (6.4.2)
+      nio4r (~> 2.0)
+    racc (1.8.0)
+    rack (2.2.9)
+    rack-test (2.1.0)
+      rack (>= 1.3)
+    rails (7.0.8.3)
+      actioncable (= 7.0.8.3)
+      actionmailbox (= 7.0.8.3)
+      actionmailer (= 7.0.8.3)
+      actionpack (= 7.0.8.3)
+      actiontext (= 7.0.8.3)
+      actionview (= 7.0.8.3)
+      activejob (= 7.0.8.3)
+      activemodel (= 7.0.8.3)
+      activerecord (= 7.0.8.3)
+      activestorage (= 7.0.8.3)
+      activesupport (= 7.0.8.3)
+      bundler (>= 1.15.0)
+      railties (= 7.0.8.3)
+    rails-dom-testing (2.2.0)
+      activesupport (>= 5.0.0)
+      minitest
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.6.0)
+      loofah (~> 2.21)
+      nokogiri (~> 1.14)
+    railties (7.0.8.3)
+      actionpack (= 7.0.8.3)
+      activesupport (= 7.0.8.3)
+      method_source
+      rake (>= 12.2)
+      thor (~> 1.0)
+      zeitwerk (~> 2.5)
+    rake (13.2.1)
+    representable (3.2.0)
+      declarative (< 0.1.0)
+      trailblazer-option (>= 0.1.1, < 0.2.0)
+      uber (< 0.2.0)
+    retriable (3.1.2)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
+    ruby2_keywords (0.0.5)
+    signet (0.19.0)
+      addressable (~> 2.8)
+      faraday (>= 0.17.5, < 3.a)
+      jwt (>= 1.5, < 3.0)
+      multi_json (~> 1.10)
+    strscan (3.1.0)
+    thor (1.3.1)
+    timeliness (0.3.10)
+    timeout (0.4.1)
+    trailblazer-option (0.1.2)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    uber (0.1.0)
+    websocket-driver (0.7.6)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.5)
+    zeitwerk (2.6.15)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  activerecord-nulldb-adapter
+  aws-sdk-cloudwatch
+  azure_mgmt_monitor
+  google-apis-monitoring_v3
+  pg
+  pg_query
+  pghero
+  propshaft
+  puma
+  rails (~> 7.0.0)
+
+BUNDLED WITH
+   2.5.9
diff --git a/pkgs/by-name/pg/pghero/gemset.nix b/pkgs/by-name/pg/pghero/gemset.nix
new file mode 100644
index 000000000000..1988239ea432
--- /dev/null
+++ b/pkgs/by-name/pg/pghero/gemset.nix
@@ -0,0 +1,1034 @@
+{
+  actioncable = {
+    dependencies = ["actionpack" "activesupport" "nio4r" "websocket-driver"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1d5g5h9r2a026fg3b75ffkfd5xkc7djild9hf7gb3v78ri20mdxy";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  actionmailbox = {
+    dependencies = ["actionpack" "activejob" "activerecord" "activestorage" "activesupport" "mail" "net-imap" "net-pop" "net-smtp"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1drdgk8795mm2wlb9g50jixd2q79vr9fkrxvqcanbmqa16y2v7k7";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  actionmailer = {
+    dependencies = ["actionpack" "actionview" "activejob" "activesupport" "mail" "net-imap" "net-pop" "net-smtp" "rails-dom-testing"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1klwlyfnnznwpcphg6z2n8z9508szr33xk7x3hv4ycdqcirgnfr5";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  actionpack = {
+    dependencies = ["actionview" "activesupport" "rack" "rack-test" "rails-dom-testing" "rails-html-sanitizer"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "11c5pm65m46wlqd25glmwpkji1jn1v2n918jmklxp4w9rr43dzi6";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  actiontext = {
+    dependencies = ["actionpack" "activerecord" "activestorage" "activesupport" "globalid" "nokogiri"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1nxycm7wpxyf05hqd1bgy98jdyi0wynlwzs7p3km8gwpdmgfw1ad";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  actionview = {
+    dependencies = ["activesupport" "builder" "erubi" "rails-dom-testing" "rails-html-sanitizer"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0p0w1rl3f5k7m39j9gnyw5wqz6ym18bhcacisqq4zng2k6jf4893";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  activejob = {
+    dependencies = ["activesupport" "globalid"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0njgqssvh3gzk0hhr04y0f783i7b44draadhjv2jsd56ssx5h8qa";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  activemodel = {
+    dependencies = ["activesupport"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0y8w73rdd7x1m1gwswjhpqfbjr95hh7hcnkjqk1wz8x9gjk9njb6";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  activerecord = {
+    dependencies = ["activemodel" "activesupport"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "03pqj57md528dgwwplr234hq628allla71i1pxys2inbpp7s7vn8";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  activerecord-nulldb-adapter = {
+    dependencies = ["activerecord"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1552py7zlamd5gy2dbkzjixanl9k07y6jqqrr4ic6n52apwd0ijy";
+      type = "gem";
+    };
+    version = "1.0.1";
+  };
+  activestorage = {
+    dependencies = ["actionpack" "activejob" "activerecord" "activesupport" "marcel" "mini_mime"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1pkb6ssxl8b9w8pczd562qw0n78fvgjc3xb5yjpfips33a7zqd9j";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  activesupport = {
+    dependencies = ["concurrent-ruby" "i18n" "minitest" "tzinfo"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1ybapgiiysxgcjyzifn34ksbwjdjzslbvbcd7v83wiry1qmiyg93";
+      type = "gem";
+    };
+    version = "7.0.8.3";
+  };
+  addressable = {
+    dependencies = ["public_suffix"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0irbdwkkjwzajq1ip6ba46q49sxnrl2cw7ddkdhsfhb6aprnm3vr";
+      type = "gem";
+    };
+    version = "2.8.6";
+  };
+  aws-eventstream = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0gvdg4yx4p9av2glmp7vsxhs0n8fj1ga9kq2xdb8f95j7b04qhzi";
+      type = "gem";
+    };
+    version = "1.3.0";
+  };
+  aws-partitions = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "10yhixzr5ndxswgis8z23cqas98m6idd2zprg7ms4sg2iixnh6sz";
+      type = "gem";
+    };
+    version = "1.935.0";
+  };
+  aws-sdk-cloudwatch = {
+    dependencies = ["aws-sdk-core" "aws-sigv4"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0iw1754r8rizshv04rj9fsm56ipnipfqxb349mx4cy195bq5k72n";
+      type = "gem";
+    };
+    version = "1.91.0";
+  };
+  aws-sdk-core = {
+    dependencies = ["aws-eventstream" "aws-partitions" "aws-sigv4" "jmespath"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0f44kp3g9g8v60f7xw769r734b7w6n774jj2njn42444ip3zwsz3";
+      type = "gem";
+    };
+    version = "3.196.1";
+  };
+  aws-sigv4 = {
+    dependencies = ["aws-eventstream"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1g3w27wzjy4si6kp49w10as6ml6g6zl3xrfqs5ikpfciidv9kpc4";
+      type = "gem";
+    };
+    version = "1.8.0";
+  };
+  azure_mgmt_monitor = {
+    dependencies = ["ms_rest_azure"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "13yqhcdqv4lr6bf3ylh2p1k9x4qg9qlr05y9fv7fi8yj5rqrbjhx";
+      type = "gem";
+    };
+    version = "0.19.0";
+  };
+  base64 = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "01qml0yilb9basf7is2614skjp8384h2pycfx86cr8023arfj98g";
+      type = "gem";
+    };
+    version = "0.2.0";
+  };
+  bigdecimal = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1gi7zqgmqwi5lizggs1jhc3zlwaqayy9rx2ah80sxy24bbnng558";
+      type = "gem";
+    };
+    version = "3.1.8";
+  };
+  builder = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "045wzckxpwcqzrjr353cxnyaxgf0qg22jh00dcx7z38cys5g1jlr";
+      type = "gem";
+    };
+    version = "3.2.4";
+  };
+  concurrent-ruby = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1qh1b14jwbbj242klkyz5fc7npd4j0mvndz62gajhvl1l3wd7zc2";
+      type = "gem";
+    };
+    version = "1.2.3";
+  };
+  crass = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0pfl5c0pyqaparxaqxi6s4gfl21bdldwiawrc0aknyvflli60lfw";
+      type = "gem";
+    };
+    version = "1.0.6";
+  };
+  date = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "149jknsq999gnhy865n33fkk22s0r447k76x9pmcnnwldfv2q7wp";
+      type = "gem";
+    };
+    version = "3.3.4";
+  };
+  declarative = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1yczgnqrbls7shrg63y88g7wand2yp9h6sf56c9bdcksn5nds8c0";
+      type = "gem";
+    };
+    version = "0.0.20";
+  };
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+    platforms = [];
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+  };
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+    platforms = [];
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+  };
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+    groups = ["default"];
+    platforms = [];
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+    groups = ["default"];
+    platforms = [];
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+    platforms = [];
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+    platforms = [];
+    source = {
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+    groups = ["default"];
+    platforms = [];
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+    groups = ["default"];
+    platforms = [];
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+    groups = ["default"];
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+  };
+  rails-html-sanitizer = {
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+    groups = ["default"];
+    platforms = [];
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+      type = "gem";
+    };
+    version = "3.2.8";
+  };
+  ruby2_keywords = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1vz322p8n39hz3b4a9gkmz9y7a5jaz41zrm2ywf31dvkqm03glgz";
+      type = "gem";
+    };
+    version = "0.0.5";
+  };
+  signet = {
+    dependencies = ["addressable" "faraday" "jwt" "multi_json"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0cfxa11wy1nv9slmnzjczkdgld0gqizajsb03rliy53zylwkjzsk";
+      type = "gem";
+    };
+    version = "0.19.0";
+  };
+  strscan = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0mamrl7pxacbc79ny5hzmakc9grbjysm3yy6119ppgsg44fsif01";
+      type = "gem";
+    };
+    version = "3.1.0";
+  };
+  thor = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1vq1fjp45az9hfp6fxljhdrkv75cvbab1jfrwcw738pnsiqk8zps";
+      type = "gem";
+    };
+    version = "1.3.1";
+  };
+  timeliness = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0gvp9b7yn4pykn794cibylc9ys1lw7fzv7djx1433icxw4y26my3";
+      type = "gem";
+    };
+    version = "0.3.10";
+  };
+  timeout = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "16mvvsmx90023wrhf8dxc1lpqh0m8alk65shb7xcya6a9gflw7vg";
+      type = "gem";
+    };
+    version = "0.4.1";
+  };
+  trailblazer-option = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "18s48fndi2kfvrfzmq6rxvjfwad347548yby0341ixz1lhpg3r10";
+      type = "gem";
+    };
+    version = "0.1.2";
+  };
+  tzinfo = {
+    dependencies = ["concurrent-ruby"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "16w2g84dzaf3z13gxyzlzbf748kylk5bdgg3n1ipvkvvqy685bwd";
+      type = "gem";
+    };
+    version = "2.0.6";
+  };
+  uber = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1p1mm7mngg40x05z52md3mbamkng0zpajbzqjjwmsyw0zw3v9vjv";
+      type = "gem";
+    };
+    version = "0.1.0";
+  };
+  websocket-driver = {
+    dependencies = ["websocket-extensions"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1nyh873w4lvahcl8kzbjfca26656d5c6z3md4sbqg5y1gfz0157n";
+      type = "gem";
+    };
+    version = "0.7.6";
+  };
+  websocket-extensions = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0hc2g9qps8lmhibl5baa91b4qx8wqw872rgwagml78ydj8qacsqw";
+      type = "gem";
+    };
+    version = "0.1.5";
+  };
+  zeitwerk = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1kr2731z8f6cj23jxh67cdnpkrnnfwbrxj1hfhshls4mp8i8drmj";
+      type = "gem";
+    };
+    version = "2.6.15";
+  };
+}
diff --git a/pkgs/by-name/pg/pghero/package.nix b/pkgs/by-name/pg/pghero/package.nix
new file mode 100644
index 000000000000..541496946982
--- /dev/null
+++ b/pkgs/by-name/pg/pghero/package.nix
@@ -0,0 +1,70 @@
+{ lib
+, stdenv
+, ruby
+, bundlerEnv
+, buildPackages
+, fetchFromGitHub
+, makeBinaryWrapper
+, callPackage
+}:
+stdenv.mkDerivation (finalAttrs:
+let
+  # Use bundlerEnvArgs from passthru to allow overriding bundlerEnv arguments.
+  rubyEnv = bundlerEnv finalAttrs.passthru.bundlerEnvArgs;
+  # We also need a separate nativeRubyEnv to precompile assets on the build
+  # host. If possible, reuse existing rubyEnv derivation.
+  nativeRubyEnv =
+    if stdenv.buildPlatform.canExecute stdenv.hostPlatform then rubyEnv
+    else buildPackages.bundlerEnv finalAttrs.passthru.bundlerEnvArgs;
+
+  bundlerEnvArgs = {
+    name = "${finalAttrs.pname}-${finalAttrs.version}-gems";
+    gemdir = ./.;
+  };
+in
+{
+  pname = "pghero";
+  version = "3.5.0";
+
+  src = fetchFromGitHub {
+    owner = "pghero";
+    repo = "pghero";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-6JShYn3QfxPdAVcrJ7/kxzxa4dBEzSkUiLguIH+VCRQ=";
+  };
+
+  strictDeps = true;
+  nativeBuildInputs = [ nativeRubyEnv makeBinaryWrapper ];
+
+  inherit rubyEnv;
+
+  buildPhase = ''
+    runHook preBuild
+    DATABASE_URL=nulldb:/// RAILS_ENV=production rake assets:precompile
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p -- "$out"/{share,bin}
+    cp -a -- . "$out"/share/pghero
+    makeWrapper "$rubyEnv"/bin/puma "$out"/bin/pghero \
+      --add-flags -C \
+      --add-flags config/puma.rb \
+      --chdir "$out"/share/pghero
+    runHook postInstall
+  '';
+
+  passthru = {
+    inherit bundlerEnvArgs;
+    updateScript = callPackage ./update.nix { };
+  };
+
+  meta = {
+    homepage = "https://github.com/ankane/pghero";
+    description = "Performance dashboard for Postgres";
+    mainProgram = "pghero";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.tie ];
+  };
+})
diff --git a/pkgs/by-name/pg/pghero/update.nix b/pkgs/by-name/pg/pghero/update.nix
new file mode 100644
index 000000000000..35edcec7b6af
--- /dev/null
+++ b/pkgs/by-name/pg/pghero/update.nix
@@ -0,0 +1,59 @@
+{ lib
+, writeShellScript
+, git
+, nix
+, bundler
+, bundix
+, coreutils
+, common-updater-scripts
+}:
+writeShellScript "update-script" ''
+  set -eu
+  PATH=${lib.makeBinPath [
+    git
+    nix
+    bundler
+    bundix
+    coreutils
+    common-updater-scripts
+  ]}
+  nix() {
+    command nix --extra-experimental-features nix-command "$@"
+  }
+  bundle() {
+    BUNDLE_FORCE_RUBY_PLATFORM=1 command bundle "$@"
+  }
+
+  attrPath=''${UPDATE_NIX_ATTR_PATH:-pghero}
+
+  toplevel=$(git rev-parse --show-toplevel)
+  position=$(nix eval --file "$toplevel" --raw "$attrPath.meta.position")
+  gemdir=$(dirname "$position")
+
+  cd "$gemdir"
+
+  tempdir=$(mktemp -d)
+  cleanup() {
+    rc=$?
+    rm -r -- "$tempdir" || true
+    exit $rc
+  }
+  trap cleanup EXIT
+
+  cp gemset.nix "$tempdir"
+
+  bundle lock --update --lockfile="$tempdir"/Gemfile.lock
+  bundix --lockfile="$tempdir"/Gemfile.lock --gemset="$tempdir"/gemset.nix
+
+  oldVersion=''${UPDATE_NIX_OLD_VERSION-}
+  newVersion=$(nix eval --file "$tempdir"/gemset.nix --raw pghero.version)
+
+  if [ "$oldVersion" = "$newVersion" ]; then
+    exit
+  fi
+
+  cp "$tempdir"/{Gemfile.lock,gemset.nix} .
+
+  cd "$toplevel"
+  update-source-version "$attrPath" "$newVersion" --file="$gemdir"/package.nix --ignore-same-hash
+''