https://blog.abhipraya.dev/tags/learning/Recent content in Learning on Daffa AbhiprayaHugoen-us© Daffa AbhiprayaThu, 09 Apr 2026 00:00:00 +0700https://blog.abhipraya.dev/ppl/part-c/s2w2-aptitude/Thu, 09 Apr 2026 00:00:00 +0700https://blog.abhipraya.dev/ppl/part-c/s2w2-aptitude/<h2 id="overview"> <a class="anchor" href="#overview" data-anchor="overview" aria-hidden="true">#</a> Overview </h2> <p>Sprint 2 Week 2 (April 3 to 9) was dominated by a mutation testing sprint: setting up mutmut and Stryker in CI, building integration test infrastructure from scratch, and writing mutation-killing tests. The week also delivered three application features and a meta-level improvement to AI workflow. Each area required learning at least one technology or concept not covered in standard Fasilkom coursework.</p> <hr> <h2 id="1-mutation-testing-with-mutmut-python"> <a class="anchor" href="#1-mutation-testing-with-mutmut-python" data-anchor="1-mutation-testing-with-mutmut-python" aria-hidden="true">#</a> 1. Mutation Testing with mutmut (Python) </h2> <p>Mutation testing is a technique where a tool injects small faults (&ldquo;mutants&rdquo;) into your source code (flipping operators, changing constants, removing lines) and checks whether your test suite catches each fault. If a test fails, the mutant is &ldquo;killed.&rdquo; If no test fails, the mutant &ldquo;survives,&rdquo; meaning your tests have a blind spot.</p>https://blog.abhipraya.dev/ppl/part-c/s2w1-aptitude/Mon, 30 Mar 2026 00:00:00 +0700https://blog.abhipraya.dev/ppl/part-c/s2w1-aptitude/<h2 id="overview"> <a class="anchor" href="#overview" data-anchor="overview" aria-hidden="true">#</a> Overview </h2> <p>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.</p> <hr> <h2 id="1-multi-device-session-management"> <a class="anchor" href="#1-multi-device-session-management" data-anchor="1-multi-device-session-management" aria-hidden="true">#</a> 1. Multi-Device Session Management </h2> <p>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&rsquo;t a standard Supabase Auth feature; it required a custom session layer on top of the existing JWT auth.</p>https://blog.abhipraya.dev/ppl/part-c/s1w3-aptitude/Tue, 10 Mar 2026 00:00:00 +0700https://blog.abhipraya.dev/ppl/part-c/s1w3-aptitude/<h2 id="overview"> <a class="anchor" href="#overview" data-anchor="overview" aria-hidden="true">#</a> Overview </h2> <p>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.</p> <hr> <h2 id="1-nginx-reverse-proxy-for-subdomain-routing"> <a class="anchor" href="#1-nginx-reverse-proxy-for-subdomain-routing" data-anchor="1-nginx-reverse-proxy-for-subdomain-routing" aria-hidden="true">#</a> 1. Nginx Reverse Proxy for Subdomain Routing </h2> <p>SIRA runs three services on a single Nashta VM, each needing its own subdomain:</p>