Devops on Daffa Abhipraya

PPL: Self-Hosted Error Monitoring with Custom Instrumentation

Sat, 11 Apr 2026 00:00:00 +0700

Error monitoring is one of those things that feels optional until the first production bug slips through unnoticed. A user reports “the page is broken,” you check the server, everything looks fine, and three hours later you discover a background task has been silently failing since the last deploy. This blog covers how we built monitoring that catches those failures before users do.

Note: Our project is hosted on an internal GitLab instance, so we use the term MR (Merge Request) throughout this blog. If you’re coming from GitHub, MRs are the equivalent of Pull Requests (PRs).

PPL: New Learnings Applied to SIRA [Sprint 2, Week 1]

Mon, 30 Mar 2026 00:00:00 +0700

Overview

Sprint 2 Week 1 (Mar 24 to 30) combined feature development with infrastructure hardening. The week produced two full-stack features (multi-device session management and email integration), a developer tooling improvement (Superset workspace isolation), and iterative CI quality gate improvements. Each required learning at least one technology from scratch.

1. Multi-Device Session Management

SIRA needed per-device session tracking: users should see which devices are logged in, and admins should be able to revoke sessions remotely. This isn’t a standard Supabase Auth feature; it required a custom session layer on top of the existing JWT auth.

PPL: Building an Integrated Tool Ecosystem for a 9-Person University Team

Thu, 12 Mar 2026 00:00:00 +0700

Why Tooling Is a Team Problem, Not a DevOps Problem

Most university software engineering courses teach you which tools to use (Git for version control, Jira for tickets, Docker for deployment). What they rarely teach is how tools interact with each other, and what happens when they don’t.

In a professional environment, a single commit can trigger a cascade: CI runs tests, a Slack bot notifies the team, a coverage report lands in SonarQube, and the ticket moves to “In Review” on the project board. This doesn’t happen by accident. Someone has to build that integration layer, and in a university team, that someone is usually whoever cares enough about developer experience to do it.

PPL: New Learnings Applied to SIRA [Sprint 1, Week 3]

Tue, 10 Mar 2026 00:00:00 +0700

Overview

Sprint 1 Week 3 (Mar 4 to 10) was infrastructure-heavy. The project needed production-grade tooling that goes well beyond standard coursework: reverse proxies, email alerting, migration safety nets, security scanning, structured logging, and AI-integrated code quality analysis. Each of these required learning a new technology from scratch and applying it directly to the project.

1. Nginx Reverse Proxy for Subdomain Routing

SIRA runs three services on a single Nashta VM, each needing its own subdomain:

PPL: Static Analysis in SIRA [Sprint 1, Week 2]

Wed, 04 Mar 2026 00:00:00 +0700

The Tool Stack

Layer	Tool	Scope
Frontend lint + format	Biome	TypeScript/TSX, 40+ enforced rules
Frontend dead code	Knip	Unused exports, imports, dependencies
Frontend types	`tsc --noEmit`	TypeScript type checking
Backend lint + format	Ruff	Python, F401/F841 + style rules
Backend types	mypy	Python static types, strict mode
CI quality gate	SonarQube	Coverage, code smells, security hotspots

Pre-commit Hooks (Husky)

Five checks run sequentially on every git commit. A failure at any step blocks the commit:

Devops on Daffa Abhipraya

PPL: Self-Hosted Error Monitoring with Custom Instrumentation

PPL: New Learnings Applied to SIRA [Sprint 2, Week 1]

# Overview

# 1. Multi-Device Session Management

PPL: Building an Integrated Tool Ecosystem for a 9-Person University Team

# Why Tooling Is a Team Problem, Not a DevOps Problem

PPL: New Learnings Applied to SIRA [Sprint 1, Week 3]

# Overview

# 1. Nginx Reverse Proxy for Subdomain Routing

PPL: Static Analysis in SIRA [Sprint 1, Week 2]

# The Tool Stack

# Pre-commit Hooks (Husky)

Overview

1. Multi-Device Session Management

Why Tooling Is a Team Problem, Not a DevOps Problem

Overview

1. Nginx Reverse Proxy for Subdomain Routing

The Tool Stack

Pre-commit Hooks (Husky)