[{"data":1,"prerenderedAt":239},["ShallowReactive",2],{"api:\u002Fapi\u002Fconfig:en":3,"api:\u002Fapi\u002Fprofile:":8,"api:\u002Fapi\u002Fcategories:en":20,"api:\u002Fapi\u002Fprojects\u002Fjob-queue:en":172,"api:\u002Fapi\u002Fnotes:en":221},{"email":4,"lang":5,"name":6,"role":7},"hello@ewsirdev.example","en","Ewsirdev","Web developer: websites, landing pages and Go services",{"name":6,"handle":6,"contacts":9,"note":19},{"email":10,"github":13,"telegram":16},{"url":11,"label":4,"placeholder":12},"mailto:hello@ewsirdev.example",true,{"url":14,"label":15},"https:\u002F\u002Fgithub.com\u002Fewsir247","github.com\u002Fewsir247",{"url":17,"label":18},"https:\u002F\u002Ft.me\u002FEwsirdev","@Ewsirdev","email is a placeholder on a reserved domain: mail is not delivered. Telegram is the real channel. This file is the single source of contacts for the site, the contact block, JSON-LD sameAs, security.txt and llms.txt.",[21,50,81,109,143],{"slug":22,"title":23,"blurb":24,"variant":25,"palette":26,"layout":27,"count":28,"preview":29,"stack":45},"landings","Landing pages","One page, one job. Hand-written markup where possible, plus one WebGL experiment.","ink","cold","shots",6,[30,35,40],{"slug":31,"title":32,"shot":33,"hue":34},"landing-studio","Halftone: lighting studio","\u002Fshots\u002Flanding-studio-desktop-sm.webp",212,{"slug":36,"title":37,"shot":38,"hue":39},"landing-saas","Kill Switch: subscription tracker","\u002Fshots\u002Flanding-saas-desktop-sm.webp",182,{"slug":41,"title":42,"shot":43,"hue":44},"landing-event","Small Scale: conference","\u002Fshots\u002Flanding-event-desktop-sm.webp",124,[46,47,48,49],"CSS","HTML","GitHub Actions","JS",{"slug":51,"title":52,"blurb":53,"variant":54,"palette":55,"layout":56,"count":57,"langs":58,"preview":62,"stack":78},"sites","Multi-page sites","Sites with their own structure, routing and forms: from a client project to a set of niche pages.","honey","mono","frames",4,[59],{"lang":60,"count":61},"TypeScript",1,[63,68,73],{"slug":64,"title":65,"shot":66,"hue":67},"legal-multipage-site","Multi-page legal services website","\u002Fshots\u002Flegal-multipage-site-desktop-sm.webp",250,{"slug":69,"title":70,"shot":71,"hue":72},"niche-landings","Catalog of 10 niche demo landing pages","\u002Fshots\u002Fniche-landings-desktop-sm.webp",32,{"slug":74,"title":75,"shot":76,"hue":77},"docs-engine","Sverlo: a documentation generator in Node.js","\u002Fshots\u002Fdocs-engine-desktop-sm.webp",25,[48,60,79,80],"Vue 3","Astro",{"slug":82,"title":83,"blurb":84,"variant":85,"palette":86,"layout":87,"count":88,"langs":89,"preview":91,"stack":106},"apps","Web apps","Interface plus server: auth, data, e-mail. Apps you sign in to.","beads","warm","phone",3,[90],{"lang":60,"count":61},[92,97,102],{"slug":93,"title":94,"shot":95,"hue":96},"bad-club-booking-app","Bad Club: seat booking for a gaming coworking space","\u002Fshots\u002Fbad-club-booking-app-desktop-sm.webp",150,{"slug":98,"title":99,"shot":100,"hue":101},"typing-lab","typing-lab: a touch-typing trainer","\u002Fshots\u002Ftyping-lab-desktop-sm.webp",45,{"slug":103,"title":104,"shot":105,"hue":101},"budget-split","budget-split: shared expense tracker","\u002Fshots\u002Fbudget-split-desktop-sm.webp",[60,107,79,108],"Vite","axe",{"slug":110,"title":111,"blurb":112,"variant":113,"palette":114,"layout":115,"count":116,"langs":117,"preview":124,"stack":140},"backend","Backends","Services with an API, a database and tests: mostly Go, with some in Python and TypeScript. A language filter sits inside the section.","ferro","acid","list",14,[118,121,123],{"lang":119,"count":120},"Go",12,{"lang":122,"count":61},"Python",{"lang":60,"count":61},[125,130,135],{"slug":126,"title":127,"shot":128,"hue":129},"kanban-tasks","Amber: kanban board","\u002Fshots\u002Fkanban-tasks-desktop-sm.webp",344,{"slug":131,"title":132,"shot":133,"hue":134},"link-shortener","Short: link shortener","\u002Fshots\u002Flink-shortener-desktop-sm.webp",111,{"slug":136,"title":137,"shot":138,"hue":139},"booking-slots","Appointment booking","\u002Fshots\u002Fbooking-slots-desktop-sm.webp",65,[141,119,142,48],"Docker","SQLite",{"slug":144,"title":145,"blurb":146,"variant":147,"palette":26,"layout":148,"count":88,"langs":149,"preview":153,"stack":169},"cli","CLI tools","Terminal programs: one binary, clear flags, an exit code you can check in a script.","film","terminal",[150,152],{"lang":119,"count":151},2,{"lang":122,"count":61},[154,159,164],{"slug":155,"title":156,"shot":157,"hue":158},"gitpulse","GitPulse: git repository analytics","\u002Fshots\u002Fgitpulse-desktop-sm.webp",7,{"slug":160,"title":161,"shot":162,"hue":163},"logslice","logslice: log analysis with no dependencies","\u002Fshots\u002Flogslice-desktop-sm.webp",160,{"slug":165,"title":166,"shot":167,"hue":168},"envguard","envguard: a linter and a safe for .env files","\u002Fshots\u002Fenvguard-desktop-sm.webp",35,[170,141,48,171],"CLI","stdlib only",{"slug":173,"title":174,"type":110,"category":110,"lang":119,"kind":175,"stack":176,"description":180,"highlights":181,"run":186,"hue":187,"og":188,"shots":189,"case":197,"case_lang":5,"prev":215,"next":218,"has_eng":12},"job-queue","Conveyor: job queue","infra",[119,142,177,178,179,141],"REST API","SSE","Prometheus","A background job queue: priorities, delayed and cron jobs, retries with backoff and jitter, dead-letter, idempotency keys, leases with fencing, Prometheus metrics.",[182,183,184,185],"At-least-once with lease and fencing","Retries with backoff and jitter + dead-letter","Custom cron parser","Prometheus metrics and graceful shutdown","cd job-queue && set API_TOKEN=demo&& set SEED_DEMO=1&& go run .\u002Fcmd\u002Fserver",249,"\u002Fog\u002Fen\u002Fjob-queue.jpg",{"desktop":190,"desktop_sm":191,"mobile":192,"dw":193,"dh":194,"mw":195,"mh":196},"\u002Fshots\u002Fjob-queue-desktop.webp","\u002Fshots\u002Fjob-queue-desktop-sm.webp","\u002Fshots\u002Fjob-queue-mobile.webp",1280,800,390,844,{"about":198,"features":201,"run":208,"notes":212},[199,200],"Conveyor is a background job queue: persistent in SQLite, with a worker pool, priorities, delayed and cron jobs, retries with exponential backoff and jitter, and a dead-letter queue with manual retry.","It guarantees at-least-once delivery: a job is held under a lease with a heartbeat, and the lease token (fencing) stops a zombie worker from corrupting the result. It also has Prometheus metrics and a live SSE dashboard.",[202,203,204,205,206,207],"Priorities 0-9, delayed start, and a custom cron expression parser (lists, ranges, steps, @daily and so on)","Idempotency keys: enqueueing again returns the existing job, even when two requests race","Atomic job claiming with a single UPDATE ... RETURNING, so no double execution even from two processes","Lease and reaper for crashed workers; graceful shutdown returns unfinished jobs to the queue","REST API, \u002Fmetrics in Prometheus format, a dashboard","Tests with -race for concurrent claiming, lease, backoff, cron and shutdown; Docker",[209,210,211],"git clone \u003Crepository on request> job-queue","cd job-queue","API_TOKEN=demo SEED_DEMO=1 go run .\u002Fcmd\u002Fserver   # http:\u002F\u002Flocalhost:8085",[213,214],"The demo handlers (email.send, image.resize, webhook.call) only simulate work: nothing is sent.","A single SQLite file, so it scales only within one machine. At-least-once only, so handlers must be idempotent; there are no job chains and no per-queue rate limits. Metric counters reset on restart.",{"slug":216,"title":217},"uptime-monitor","Pulse: uptime monitor",{"slug":219,"title":220},"realtime-rooms","Rooms: realtime chat and board",[222,227,231,235],{"slug":223,"lang":5,"title":224,"date":225,"summary":226,"project":136,"minutes":61},"double-booking","Double booking: a transaction plus a partial UNIQUE index","2026-10-20","How booking-slots protects against two clients booking the same time at once, and how that protection is tested.",{"slug":228,"lang":5,"title":229,"date":225,"summary":230,"project":173,"minutes":151},"lease-and-fencing","Lease and fencing: how a queue neither loses a job nor lets a zombie finish it twice","A worker can crash, stall, or wake up after its job was taken by someone else. How the lease and the lease token in job-queue deal with that on SQLite.",{"slug":232,"lang":5,"title":233,"date":225,"summary":234,"project":216,"minutes":151},"p95-nearest-rank","p95 in an uptime monitor: the nearest-rank method and what it does not hide","How uptime-monitor computes p50\u002Fp95 latency and uptime, why the nearest-rank method was chosen, and where those numbers can mislead.",{"slug":236,"lang":5,"title":237,"date":225,"summary":238,"project":219,"minutes":151},"websocket-from-scratch","WebSocket on the standard library: what really happens under new WebSocket()","Why realtime-rooms has its own RFC 6455 layer, which protocol violations it checks, and why a library is still the better choice for production.",1793230266316]