Flutter · Cloudflare edge · Cloud cost optimizationhttps://effidev.dev/en-UShttps://effidev.dev/en/blog/cloudflare-d1-sharding-guide/https://effidev.dev/en/blog/cloudflare-d1-sharding-guide/When a multi-tenant, write-heavy app runs into Cloudflare D1's 10GB hard limit and single-writer architecture, here's how to scale out with tenant-based manual sharding — routing code and a rebalancing procedure included.Fri, 24 Jul 2026 00:00:00 GMTcloudflared1databaseshardinghttps://effidev.dev/en/blog/cloudflare-durable-objects-rate-limit/https://effidev.dev/en/blog/cloudflare-durable-objects-rate-limit/A code-first look at the production traps in Cloudflare Durable Objects: the exact conditions that trigger the real 'overloaded' error and reproduction code, the latency caused by single-thread serialized processing, and the duplicate-execution bugs created by alarm() retries.Fri, 24 Jul 2026 00:00:00 GMTcloudflaredurable-objectsscalingperformancehttps://effidev.dev/en/blog/cloudflare-websocket-hibernation-cost/https://effidev.dev/en/blog/cloudflare-websocket-hibernation-cost/A look at why standard WebSocket connections in Durable Objects-based chat and multiplayer servers keep racking up GB-s charges even during idle periods, with Hibernation API migration code and a cost simulation based on official pricing.Fri, 24 Jul 2026 00:00:00 GMTcloudflaredurable-objectswebsocketcost-optimizationhttps://effidev.dev/en/blog/cloudflare-workers-vs-aws-lambda-cost/https://effidev.dev/en/blog/cloudflare-workers-vs-aws-lambda-cost/The answer you need when deciding whether to build a Flutter app's webhook handler or push-notification server on Workers or Lambda. Factoring in Workers' CPU-time-only billing, Lambda's wall-clock billing, and the API Gateway trap, this post calculates the actual bill across the 1M-to-100M-requests-per-month range.Fri, 24 Jul 2026 00:00:00 GMTcloudflareworkersaws-lambdacost-optimizationhttps://effidev.dev/en/blog/firestore-read-cost-flutter/https://effidev.dev/en/blog/firestore-read-cost-flutter/How the anti-patterns that keep showing up in Flutter+Firestore apps — N+1 lookups, StreamBuilder listener reconnects, and get() polling — exponentially inflate read counts, calculated against real pricing, plus the threshold where the free daily quota runs out and alternative architectures worth considering.Fri, 24 Jul 2026 00:00:00 GMTfirebasefirestorefluttercost-optimizationhttps://effidev.dev/en/blog/flutter-16kb-page-size-google-play/https://effidev.dev/en/blog/flutter-16kb-page-size-google-play/Even now, after Google Play's 16KB memory page size requirement deadline (May 31, 2026) has passed, Flutter apps using native plugins can still get rejected on update. Here's how to check whether your app is affected and a practical playbook for dealing with unpatched third-party SDKs.Fri, 24 Jul 2026 00:00:00 GMTflutterandroidgoogle-playnativehttps://effidev.dev/en/blog/flutter-golden-test-flaky-ci/https://effidev.dev/en/blog/flutter-golden-test-flaky-ci/Flutter golden tests that pass locally but turn red the moment CI runs are usually caused by font, DPR, and rasterizer differences. A practical playbook covering font bundling, pinning the test environment, tolerance-based diff tools, and splitting golden tests into their own CI job.Fri, 24 Jul 2026 00:00:00 GMTfluttertestingci-cdgolden-testhttps://effidev.dev/en/blog/flutter-riverpod-vs-bloc-decision-guide/https://effidev.dev/en/blog/flutter-riverpod-vs-bloc-decision-guide/Choose between Riverpod and Bloc based on the pain points that actually surface in production, not a feature comparison table — provider scope stale state, build_runner friction, event explosion, and a team-size-based decision checklist.Fri, 24 Jul 2026 00:00:00 GMTflutterriverpodblocstate-managementhttps://effidev.dev/en/blog/flutter-shader-compilation-jank/https://effidev.dev/en/blog/flutter-shader-compilation-jank/Shader compilation jank in Flutter shows up fine in debug mode but rears its head only in release builds or on new devices. Here's a field-tested walkthrough covering DevTools Raster thread analysis, SkSL warm-up, and what's changed since Impeller became the default renderer.Fri, 24 Jul 2026 00:00:00 GMTflutterperformancerenderingimpellerhttps://effidev.dev/en/blog/r2-vs-s3-vs-firebase-storage-egress-cost/https://effidev.dev/en/blog/r2-vs-s3-vs-firebase-storage-egress-cost/When deciding where to store a Flutter app's profile pictures, post images, and videos, the variable that actually matters isn't storage cost — it's download (egress) cost. We simulate real bills across traffic tiers using R2, S3, and Firebase Storage's actual pricing.Fri, 24 Jul 2026 00:00:00 GMTcloudflarer2s3cost-optimization