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The audio bugs nobody warns you about when you build a mobile looper
34+ min ago (709+ words) I spent the last few months building an MPC-style pad sampler and looper for Android in Flutter. The UI was the easy part. The part that ate the time was audio — specifically, all the ways audio quietly breaks on a…...
Java Concurrency & Multithreading: 40 Interview Questions
1+ hour, 29+ min ago (829+ words) A process has its own memory space and OS resources; threads live inside a process and share its heap and file handles but keep their own stack and program counter. That shared memory is exactly why threads are cheap to…...
Faster Maps: Chasing Swiss Speed
2+ hour, 6+ min ago (974+ words) ParparVM fixes pathological map misses and extends tagged boxed values. Probe counts, allocation coverage, and regressions show where ordinary Java collections became cheaper. Tagged with java, mobile, android, ios....
Stop Chasing Exactly-Once. Your Kafka Consumer Just Needs to Not Care
4+ hour, 3+ min ago (368+ words) Every few months a team I talk to decides they need exactly-once delivery in Kafka. They read the... Tagged with java, microservices, kafka, springboot....
(d+017) TileMap
5+ hour ago (20+ words) Game Programming in C++ 산자이 마드하브 느낌 책의 4장까지 독서를 마치고 이제 대략적인 게임엔진의... Tagged with cpp, gamedev, tilemap, devjournal....
EasyJPA: Type-Safe Dynamic Queries in Three Lines, Not Thirty
5+ hour, 8+ min ago (617+ words) Every query is a lambda. Every join has a name. Not a single JPQL string. Here is the whole pitch in one screenshot's worth of code. Same query. Same type safety. Same generated SQL. Step 1 — add the dependency. The current…...
When the VPN Goes Away: Putting Spring Security into a Running Application
6+ hour, 38+ min ago (1564+ words) There is a very common kind of application: it lives inside a company network, it is reachable over the VPN, and it has been running like that for years. Accounting systems, internal reporting tools, warehouse apps, admin panels. Sometimes there…...
Data Transfer Architecture: Moving Massive Payloads Between Services Without Overloading the Network
7+ hour, 1+ min ago (441+ words) The most common architectural anti-pattern in distributed systems is the application-server data proxy model. In this setup, an end-client uploads a large file directly to a web application server, which then buffers the entire payload into local memory or temporary…...
Turn a Spring Boot app into a distributed cron cluster
8+ hour, 15+ min ago (343+ words) @Scheduled is fine until it isn't.... Tagged with architecture, java, opensource, springboot....
What Zig Feels Like Coming from Go: A Systems Programming Comparison
9+ hour, 37+ min ago (678+ words) The difference is what they optimize for. Go optimizes for engineering velocity at scale — teams, services, microservices, distributed systems. Zig optimizes for control — predictable performance, zero hidden costs, and direct hardware access. If you've ever hit a GC pause in…...