ericrocha97 · ericrocha97 · Apr 26, 2026 · Apr 26, 2026 · Apr 26, 2026 · Apr 26, 2026
diff --git a/.github/workflows/validate-jenkins-tests.yml b/.github/workflows/validate-jenkins-tests.yml
@@ -0,0 +1,24 @@
+name: Validate Jenkins Shell Tests
+permissions:
+  contents: read
+
+on:
+  pull_request:
+    paths:
+      - "Jenkinsfile"
+      - "ci/jenkins/**"
+      - ".github/workflows/validate-jenkins-tests.yml"
+  workflow_dispatch:
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v5
+
+      - name: Run Jenkins shell tests
+        shell: bash
+        run: |
+          set -xeuo pipefail
+          bash ci/jenkins/tests/run-all.sh
diff --git a/.gitignore b/.gitignore
@@ -4,3 +4,7 @@ output
 _build-*/**
 *.log
 .worktrees/
+
+*.txt
+
+docs/superpowers/
diff --git a/Jenkinsfile b/Jenkinsfile
@@ -227,15 +227,25 @@ gh release upload "$release_tag" "$MANIFEST_FILE" --clobber
     }
 
     post {
-        success {
+        always {
+            archiveArtifacts artifacts: 'ci/jenkins/build/*', allowEmptyArchive: true
+            script {
+                def result = (currentBuild.currentResult ?: 'SUCCESS').toUpperCase()
+                env.N8N_STATUS = result == 'SUCCESS' ? 'success' : 'failure'
+                env.N8N_ERROR_SUMMARY = result == 'SUCCESS' ? '' : 'Pipeline failed before completion.'
+            }
             withCredentials([
                 string(credentialsId: 'n8n-webhook-url', variable: 'WEBHOOK_URL'),
                 string(credentialsId: 'n8n-webhook-token', variable: 'N8N_WEBHOOK_SHARED_TOKEN')
             ]) {
                 sh '''#!/usr/bin/env bash
 set -euo pipefail
 
-published_tags="$(paste -sd, "$TAGS_FILE")"
+published_tags=""
+if [[ -f "$TAGS_FILE" ]]; then
+  published_tags="$(paste -sd, "$TAGS_FILE")"
+fi
+
 finished_at="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
 build_started_at="${BUILD_STARTED_AT:-}"
 if [[ -z "$build_started_at" && -f ci/jenkins/build/started_at ]]; then
@@ -260,68 +270,29 @@ finished_epoch="$(date -u -d "$finished_at" +%s 2>/dev/null || printf '0')"
 duration_ms="$(( (finished_epoch - started_epoch) * 1000 ))"
 if (( duration_ms < 0 )); then duration_ms=0; fi
 
-export STATUS="success"
+export STATUS="${N8N_STATUS:-failure}"
 export JOB_NAME="$JOB_NAME"
 export BUILD_NUMBER="$BUILD_NUMBER"
 export BUILD_URL="$BUILD_URL"
 git_sha="${GIT_COMMIT:-${GIT_PREVIOUS_SUCCESSFUL_COMMIT:-unknown}}"
 export GIT_SHA="$git_sha"
 export IMAGE_NAME="$IMAGE_REPOSITORY"
-export PUBLISHED_TAGS="${published_tags:-$short_date}"
+if [[ "$STATUS" == "success" ]]; then
+  export PUBLISHED_TAGS="${published_tags:-$short_date}"
+else
+  export PUBLISHED_TAGS=""
+fi
 export TIMESTAMP_UTC="$finished_at"
-export ERROR_SUMMARY=""
+export ERROR_SUMMARY="${N8N_ERROR_SUMMARY:-}"
 export STARTED_AT="$build_started_at"
 export FINISHED_AT="$finished_at"
 export DURATION_MS="$duration_ms"
 export RELEASE_TAG="${release_tag:-unknown}"
 if ! bash ci/jenkins/scripts/notify_n8n.sh; then
-  echo "WARN: notify_n8n.sh failed in post-success hook (best-effort notification)." >&2
-fi
-'''
-            }
-        }
-        failure {
-            withCredentials([
-                string(credentialsId: 'n8n-webhook-url', variable: 'WEBHOOK_URL'),
-                string(credentialsId: 'n8n-webhook-token', variable: 'N8N_WEBHOOK_SHARED_TOKEN')
-            ]) {
-                sh '''#!/usr/bin/env bash
-set -euo pipefail
-
-finished_at="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
-started_at="${BUILD_STARTED_AT:-}"
-if [[ -z "$started_at" && -f ci/jenkins/build/started_at ]]; then
-  started_at="$(<ci/jenkins/build/started_at)"
-fi
-if [[ -z "$started_at" ]]; then
-  started_at="$finished_at"
-fi
-started_epoch="$(date -u -d "$started_at" +%s 2>/dev/null || printf '0')"
-finished_epoch="$(date -u -d "$finished_at" +%s 2>/dev/null || printf '0')"
-duration_ms="$(( (finished_epoch - started_epoch) * 1000 ))"
-if (( duration_ms < 0 )); then duration_ms=0; fi
-
-export STATUS="failure"
-export JOB_NAME="$JOB_NAME"
-export BUILD_NUMBER="$BUILD_NUMBER"
-export BUILD_URL="$BUILD_URL"
-export GIT_SHA="${GIT_COMMIT:-unknown}"
-export IMAGE_NAME="$IMAGE_REPOSITORY"
-export PUBLISHED_TAGS=""
-export TIMESTAMP_UTC="$finished_at"
-export ERROR_SUMMARY="Pipeline failed before completion."
-export STARTED_AT="$started_at"
-export FINISHED_AT="$finished_at"
-export DURATION_MS="$duration_ms"
-export RELEASE_TAG="${RELEASE_TAG:-unknown}"
-if ! bash ci/jenkins/scripts/notify_n8n.sh; then
-  echo "WARN: notify_n8n.sh failed in post-failure hook (best-effort notification)." >&2
+  echo "WARN: notify_n8n.sh failed in post hook (best-effort notification)." >&2
 fi
 '''
             }
         }
-        always {
-            archiveArtifacts artifacts: 'ci/jenkins/build/*', allowEmptyArchive: true
-        }
     }
 }
diff --git a/README.md b/README.md
@@ -7,7 +7,7 @@ This project was created using the finpilot template: <https://github.com/projec
 
 Portuguese version: [README.pt-BR.md](README.pt-BR.md)
 
-It builds a custom bootc image based on Bluefin DX, using the multi-stage OCI pattern from the Bluefin ecosystem.
+It builds a COSMIC-only custom bootc image based on Bluefin DX, using the multi-stage OCI pattern from the Bluefin ecosystem.
 
 ## Build and Publish
 
@@ -38,7 +38,9 @@ Here are the changes from Bluefin DX. This image is based on Bluefin and include
 
 ### Removed/Disabled
 
-- None.
+- **GNOME desktop session**: Removed so COSMIC is the only login session.
+- **GDM**: Disabled/removed in favor of COSMIC Greeter.
+- **GNOME-specific mutter tuning**: Removed because GNOME is no longer shipped as a desktop session.
 
 ### System Optimizations (CachyOS/LinuxToys)
 
@@ -49,30 +51,31 @@ Here are the changes from Bluefin DX. This image is based on Bluefin and include
 - **journald**: Journal size limited to 50MB
 - **earlyoom**: 5% memory/swap threshold, D-Bus notifications
 - **Auto-updates**: rpm-ostreed AutomaticUpdatePolicy=stage
-- **GNOME**: mutter check-alive-timeout set to 20s
 - **Fastfetch**: Custom config showing image name/version, COSMIC version, and build date (overrides upstream Bluefin config)
 
 ### Configuration Changes
 
-- Dual desktop sessions available in GDM (GNOME and COSMIC).
+- COSMIC Greeter is enabled as the default login manager.
+- COSMIC is the only desktop session presented at login.
 - Custom ujust commands available: install-nvm, install-sdkman, install-dev-managers.
 
-*Last updated: 2026-03-14*
+*Last updated: 2026-04-24*
 
 ## What is this image
 
-bluefin-cosmic-dx is a developer-focused Bluefin image with **GNOME + COSMIC dual desktop** support. You can choose which desktop environment to use at the login screen.
+bluefin-cosmic-dx is a developer-focused Bluefin DX image that keeps the Bluefin DX base and ships COSMIC as the only desktop environment.
 
 ## What changes in this version
 
-Based on **Bluefin DX**, this image adds:
+Based on **Bluefin DX**, this image adds and changes:
 
-- **COSMIC desktop** (System76) as an alternative to GNOME
+- **COSMIC desktop** (System76) as the only desktop session
+- **COSMIC Greeter** as the login manager
+- **GNOME desktop session removed** from the final image
 - **VSCode Insiders** installed via RPM
 - **Warp Terminal** installed via RPM
 - **Vicinae** installed via Terra repo (Bazzite-compatible)
-- **Dual desktop support**: Choose GNOME or COSMIC at login (GDM)
-- All Bluefin DX features (containers, DevPods, CLI tools, etc.)
+- All Bluefin DX development features that remain compatible with the COSMIC-only desktop target
 
 Base image: `ghcr.io/ublue-os/bluefin-dx:stable-daily`
 
@@ -164,20 +167,17 @@ Image signing is optional. The repository keeps Cosign signing steps in `.github
 
 If you decide to re-enable GitHub Actions release builds later, these signing steps can be reactivated there. For the current production flow, Jenkins is responsible for build/publish.
 
-## Choosing Desktop at Login
+## COSMIC Login
 
-At the GDM login screen, click the **⚙️ gear icon** to select:
-
-- **GNOME** - Default Bluefin desktop
-- **COSMIC** - System76's new desktop environment
+The image boots to COSMIC Greeter and starts the COSMIC Wayland session. GNOME is intentionally not offered as a login option.
 
 ## Troubleshooting
 
-### COSMIC session does not appear in GDM
+### COSMIC session does not appear
 
 1. Verify packages: `rpm -qa | grep -i cosmic`
 2. Check session file: `ls /usr/share/wayland-sessions/cosmic.desktop`
-3. Restart GDM: `sudo systemctl restart gdm`
+3. Check COSMIC Greeter: `systemctl status cosmic-greeter`
 
 ### VSCode or Warp fails to start
 
@@ -200,16 +200,12 @@ At the GDM login screen, click the **⚙️ gear icon** to select:
 <details>
 <summary>View screenshots</summary>
 
-### GDM session selector
+### COSMIC Greeter
 
-![GDM session selector](https://raw.githubusercontent.com/ericrocha97/bluefin/main/docs/images/gdm-selector.png)
+![COSMIC Greeter](https://raw.githubusercontent.com/ericrocha97/bluefin/main/docs/images/cosmic-greeter.png)
 
 ### COSMIC desktop
 
 ![COSMIC desktop](https://raw.githubusercontent.com/ericrocha97/bluefin/main/docs/images/cosmic-desktop.png)
 
-### GNOME desktop
-
-![GNOME desktop](https://raw.githubusercontent.com/ericrocha97/bluefin/main/docs/images/gnome-desktop.png)
-
 </details>
diff --git a/README.pt-BR.md b/README.pt-BR.md
@@ -7,7 +7,7 @@ Este projeto foi criado usando o template finpilot: <https://github.com/projectb
 
 Versão em inglês: [README.md](README.md)
 
-Ele constrói uma imagem bootc customizada baseada no Bluefin DX, usando o padrão multi-stage OCI do ecossistema Bluefin.
+Ele constrói uma imagem bootc customizada COSMIC-only baseada no Bluefin DX, usando o padrão multi-stage OCI do ecossistema Bluefin.
 
 ## Build e Publicação
 
@@ -38,7 +38,9 @@ Aqui estão as mudanças em relação ao Bluefin DX. Esta imagem é baseada no B
 
 ### Removidos/Desativados
 
-- Nenhum.
+- **Sessão GNOME**: Removida para que COSMIC seja a única sessão de login.
+- **GDM**: Desativado/removido em favor do COSMIC Greeter.
+- **Tuning específico do mutter/GNOME**: Removido porque GNOME não é mais enviado como sessão desktop.
 
 ### Otimizações do Sistema (CachyOS/LinuxToys)
 
@@ -49,30 +51,31 @@ Aqui estão as mudanças em relação ao Bluefin DX. Esta imagem é baseada no B
 - **journald**: Tamanho do journal limitado a 50MB
 - **earlyoom**: Threshold de 5% memória/swap, notificações D-Bus
 - **Auto-updates**: rpm-ostreed AutomaticUpdatePolicy=stage
-- **GNOME**: mutter check-alive-timeout configurado para 20s
 - **Fastfetch**: Config customizado exibindo nome/versão da imagem, versão do COSMIC e data do build (sobrescreve config padrão do Bluefin)
 
 ### Mudanças de configuração
 
-- Sessões de desktop duplas disponíveis no GDM (GNOME e COSMIC).
+- COSMIC Greeter é habilitado como gerenciador de login padrão.
+- COSMIC é a única sessão de desktop apresentada no login.
 - Comandos customizados do ujust disponíveis: install-nvm, install-sdkman, install-dev-managers.
 
-*Última atualização: 2026-03-14*
+*Última atualização: 2026-04-24*
 
 ## O que é esta imagem
 
-bluefin-cosmic-dx é uma imagem Bluefin focada em desenvolvimento, com **suporte a GNOME + COSMIC dual desktop**. Você pode escolher qual ambiente usar na tela de login.
+bluefin-cosmic-dx é uma imagem Bluefin DX focada em desenvolvimento que mantém a base Bluefin DX e entrega COSMIC como o único ambiente desktop.
 
 ## O que muda nesta versão
 
-Baseado no **Bluefin DX**, esta imagem adiciona:
+Baseado no **Bluefin DX**, esta imagem adiciona e altera:
 
-- **Desktop COSMIC** (System76) como alternativa ao GNOME
+- **Desktop COSMIC** (System76) como única sessão de desktop
+- **COSMIC Greeter** como gerenciador de login
+- **Sessão GNOME removida** da imagem final
 - **VSCode Insiders** instalado via RPM
 - **Warp Terminal** instalado via RPM
 - **Vicinae** instalado via repo Terra (compatível com Bazzite)
-- **Suporte dual desktop**: Escolha GNOME ou COSMIC no login (GDM)
-- Todos os recursos do Bluefin DX (containers, DevPods, ferramentas CLI, etc.)
+- Recursos de desenvolvimento do Bluefin DX que continuam compatíveis com o alvo COSMIC-only
 
 Imagem base: `ghcr.io/ublue-os/bluefin-dx:stable-daily`
 
@@ -160,20 +163,17 @@ A assinatura de imagem é opcional. O repositório mantém etapas de assinatura
 
 Se no futuro você reativar build de release no GitHub Actions, essas etapas de assinatura podem ser usadas lá novamente. No fluxo atual de produção, o Jenkins é responsável por build/publicação.
 
-## Escolhendo o Desktop no Login
+## Login COSMIC
 
-Na tela de login (GDM), clique no **ícone de engrenagem ⚙️** para selecionar:
-
-- **GNOME** - Desktop padrão do Bluefin
-- **COSMIC** - Novo ambiente desktop da System76
+A imagem inicia no COSMIC Greeter e abre a sessão Wayland do COSMIC. GNOME intencionalmente não é oferecido como opção de login.
 
 ## Solução de problemas
 
-### Sessão COSMIC não aparece no GDM
+### Sessão COSMIC não aparece
 
 1. Verifique pacotes: `rpm -qa | grep -i cosmic`
 2. Verifique o arquivo de sessão: `ls /usr/share/wayland-sessions/cosmic.desktop`
-3. Reinicie o GDM: `sudo systemctl restart gdm`
+3. Verifique o COSMIC Greeter: `systemctl status cosmic-greeter`
 
 ### VSCode ou Warp não abre
 
@@ -196,16 +196,12 @@ Na tela de login (GDM), clique no **ícone de engrenagem ⚙️** para seleciona
 <details>
 <summary>Ver screenshots</summary>
 
-### Seletor de sessão no GDM
+### COSMIC Greeter
 
-![Seletor de sessão no GDM](https://raw.githubusercontent.com/ericrocha97/bluefin/main/docs/images/gdm-selector.png)
+![COSMIC Greeter](https://raw.githubusercontent.com/ericrocha97/bluefin/main/docs/images/cosmic-greeter.png)
 
 ### Desktop COSMIC
 
 ![Desktop COSMIC](https://raw.githubusercontent.com/ericrocha97/bluefin/main/docs/images/cosmic-desktop.png)
 
-### Desktop GNOME
-
-![Desktop GNOME](https://raw.githubusercontent.com/ericrocha97/bluefin/main/docs/images/gnome-desktop.png)
-
 </details>
diff --git a/build/15-system-optimizations.sh b/build/15-system-optimizations.sh
@@ -16,7 +16,6 @@ set -eoux pipefail
 #   - journald size limits
 #   - rpm-ostreed automatic update policy
 #   - earlyoom configuration
-#   - GNOME mutter check-alive-timeout
 ###############################################################################
 
 # Source helper functions
@@ -106,24 +105,6 @@ log_success "earlyoom service enabled"
 
 echo "::endgroup::"
 
-###############################################################################
-# Install GNOME GSettings Override
-###############################################################################
-
-echo "::group:: Install GNOME Tweaks"
-log_step "Installing GNOME GSettings overrides..."
-
-mkdir -p /usr/share/glib-2.0/schemas/
-cp -v "${SYSTEM_FILES_DIR}"/usr/share/glib-2.0/schemas/99-custom.gschema.override \
-    /usr/share/glib-2.0/schemas/
-
-# Recompile GSettings schemas to apply overrides
-log_info "Recompiling GSettings schemas..."
-glib-compile-schemas /usr/share/glib-2.0/schemas/
-log_success "GNOME check-alive-timeout set to 20000ms"
-
-echo "::endgroup::"
-
 ###############################################################################
 # Install Custom Fastfetch Configuration
 ###############################################################################
@@ -156,5 +137,4 @@ log_info "  ✓ Transparent Huge Pages (defer+madvise, shrinker at 80%)"
 log_info "  ✓ Journal size limited to 50MB"
 log_info "  ✓ Automatic updates (stage policy)"
 log_info "  ✓ earlyoom enabled (5% memory/swap threshold)"
-log_info "  ✓ GNOME mutter check-alive-timeout = 20s"
 log_info "  ✓ Custom fastfetch config (image info, COSMIC version, build date)"