[{"data":1,"prerenderedAt":493},["ShallowReactive",2],{"api:\u002Fapi\u002Fconfig:en":3,"api:\u002Fapi\u002Fprofile:":8,"api:\u002Fapi\u002Fcategories:en":20,"api:\u002Fapi\u002Fstats:":138,"api:\u002Fapi\u002Fprojects:en:{\"category\":\"backend\"}":260},{"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.",[21,50,73,92,121],{"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.","drop","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,"preview":58,"stack":69},"sites","Multi-page sites","Sites with their own structure, routing and forms: from a client project to a set of niche pages.","lens","mono","frames",2,[59,64],{"slug":60,"title":61,"shot":62,"hue":63},"legal-multipage-site","Multi-page legal services website","\u002Fshots\u002Flegal-multipage-site-desktop-sm.webp",250,{"slug":65,"title":66,"shot":67,"hue":68},"niche-landings","Catalog of 10 niche demo landing pages","\u002Fshots\u002Fniche-landings-desktop-sm.webp",32,[48,70,71,72],"Vue 3","Bootstrap 5","Docker",{"slug":74,"title":75,"blurb":76,"variant":77,"palette":78,"layout":79,"count":80,"preview":81,"stack":87},"apps","Web apps","Interface plus server: auth, data, e-mail. Apps you sign in to.","merge","warm","phone",1,[82],{"slug":83,"title":84,"shot":85,"hue":86},"bad-club-booking-app","Bad Club: seat booking for a gaming coworking space","\u002Fshots\u002Fbad-club-booking-app-desktop-sm.webp",150,[88,89,90,91],"Express","GSAP","JWT (httpOnly cookie)","Pinia",{"slug":93,"title":94,"blurb":95,"variant":96,"palette":97,"layout":98,"count":99,"langs":100,"preview":103,"stack":119},"backend","Backends","Services with an API, a database and tests. All Go for now; the language filter grows with the first project in another one.","torus","acid","list",12,[101],{"lang":102,"count":99},"Go",[104,109,114],{"slug":105,"title":106,"shot":107,"hue":108},"kanban-tasks","Amber: kanban board","\u002Fshots\u002Fkanban-tasks-desktop-sm.webp",344,{"slug":110,"title":111,"shot":112,"hue":113},"link-shortener","Short: link shortener","\u002Fshots\u002Flink-shortener-desktop-sm.webp",111,{"slug":115,"title":116,"shot":117,"hue":118},"booking-slots","Appointment booking","\u002Fshots\u002Fbooking-slots-desktop-sm.webp",65,[72,102,120,48],"SQLite",{"slug":122,"title":123,"blurb":124,"variant":125,"palette":55,"layout":126,"count":80,"langs":127,"preview":129,"stack":135},"cli","CLI tools","Terminal programs: one binary, clear flags, an exit code you can check in a script.","film","terminal",[128],{"lang":102,"count":80},[130],{"slug":131,"title":132,"shot":133,"hue":134},"gitpulse","GitPulse: git repository analytics","\u002Fshots\u002Fgitpulse-desktop-sm.webp",7,[136,137,72,48],"ANSI","CLI",{"generated_at":139,"tests_method":140,"note":141,"totals":142,"projects":152},"2026-10-22","go test -list","Lines are non-blank lines. Endpoints are HandleFunc\u002FHandle route patterns (without \u002Fdemo\u002F*). Tests are top-level Test* functions.",{"projects":143,"go_projects":144,"go_lines":145,"go_test_lines":146,"tests":147,"endpoints":148,"html":149,"css":150,"js":151},17,13,26503,12027,418,230,1973,3525,4815,[153,163,172,179,188,193,202,208,214,217,220,223,226,232,240,247,253],{"slug":154,"kind":155,"go_lines":156,"go_test_lines":157,"tests":158,"endpoints":159,"html":160,"css":161,"js":162},"api-gateway","go",2334,1179,48,11,115,139,163,{"slug":164,"kind":155,"go_lines":165,"go_test_lines":166,"tests":167,"endpoints":168,"html":169,"css":170,"js":171},"auth-service",2826,1393,50,35,23,166,500,{"slug":115,"kind":155,"go_lines":173,"go_test_lines":174,"tests":99,"endpoints":175,"html":176,"css":177,"js":178},891,338,18,146,123,309,{"slug":180,"kind":155,"go_lines":181,"go_test_lines":182,"tests":183,"endpoints":184,"html":185,"css":186,"js":187},"finance-tracker",3741,1371,30,45,24,1148,72,{"slug":131,"kind":155,"go_lines":189,"go_test_lines":190,"tests":68,"endpoints":191,"html":192,"css":192,"js":192},2133,735,3,0,{"slug":194,"kind":155,"go_lines":195,"go_test_lines":196,"tests":197,"endpoints":198,"html":199,"css":200,"js":201},"job-queue",2161,833,25,19,138,188,331,{"slug":105,"kind":155,"go_lines":203,"go_test_lines":204,"tests":134,"endpoints":175,"html":205,"css":206,"js":207},871,272,102,156,328,{"slug":209,"kind":210,"go_lines":192,"go_test_lines":192,"tests":192,"endpoints":192,"html":211,"css":212,"js":213},"landing-3d","static",201,162,377,{"slug":41,"kind":210,"go_lines":192,"go_test_lines":192,"tests":192,"endpoints":192,"html":176,"css":215,"js":216},122,59,{"slug":36,"kind":210,"go_lines":192,"go_test_lines":192,"tests":192,"endpoints":192,"html":218,"css":219,"js":216},172,136,{"slug":31,"kind":210,"go_lines":192,"go_test_lines":192,"tests":192,"endpoints":192,"html":221,"css":222,"js":216},187,109,{"slug":110,"kind":155,"go_lines":173,"go_test_lines":207,"tests":99,"endpoints":159,"html":224,"css":212,"js":225},119,317,{"slug":227,"kind":155,"go_lines":228,"go_test_lines":203,"tests":68,"endpoints":198,"html":229,"css":230,"js":231},"notes-search",2027,174,192,517,{"slug":233,"kind":155,"go_lines":234,"go_test_lines":235,"tests":236,"endpoints":237,"html":238,"css":230,"js":239},"pixel-wall",2715,1910,77,16,106,625,{"slug":241,"kind":155,"go_lines":242,"go_test_lines":243,"tests":244,"endpoints":144,"html":245,"css":229,"js":246},"raft-kv",2646,895,27,91,213,{"slug":248,"kind":155,"go_lines":249,"go_test_lines":250,"tests":158,"endpoints":134,"html":251,"css":252,"js":231},"realtime-rooms",1822,1313,103,184,{"slug":254,"kind":155,"go_lines":255,"go_test_lines":256,"tests":175,"endpoints":257,"html":258,"css":218,"js":259},"uptime-monitor",1445,589,15,126,369,[261,279,292,304,322,339,358,381,403,427,452,474],{"slug":105,"title":106,"type":93,"category":93,"lang":102,"kind":262,"stack":263,"description":264,"highlights":265,"run":270,"hue":108,"og":271,"shots":272},"api",[102,120,72],"A multi-user kanban board: sign-up, boards, columns, drag-and-drop cards. Go + SQLite without CGO, the front end is embedded in the binary.",[266,267,268,269],"PBKDF2 and sessions in an HttpOnly cookie","Per-user data isolation","API tests","Multi-stage Docker","cd kanban-tasks && go run .","\u002Fog\u002Fen\u002Fkanban-tasks.jpg",{"desktop":273,"desktop_sm":107,"mobile":274,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Fkanban-tasks-desktop.webp","\u002Fshots\u002Fkanban-tasks-mobile.webp",1280,800,390,844,{"slug":110,"title":111,"type":93,"category":93,"lang":102,"kind":262,"stack":280,"description":281,"highlights":282,"run":287,"hue":113,"og":288,"shots":289},[102,120,72],"Link shortening with aliases and expiry, click statistics by day, browser and device, a token-protected dashboard. IP addresses are not stored.",[283,284,285,286],"Redirect and click tracking","Rate limiting","Private statistics (salted hash)","Tests and Docker","cd link-shortener && set SEED_DEMO=1&& go run .\u002Fcmd\u002Fserver","\u002Fog\u002Fen\u002Flink-shortener.jpg",{"desktop":290,"desktop_sm":112,"mobile":291,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Flink-shortener-desktop.webp","\u002Fshots\u002Flink-shortener-mobile.webp",{"slug":115,"title":116,"type":93,"category":93,"lang":102,"kind":262,"stack":293,"description":294,"highlights":295,"run":299,"hue":118,"og":300,"shots":301},[102,120,72],"Online booking: free slots computed from service duration and working hours, double-booking protection, an admin panel. A fictional studio, demo.",[296,297,298,286],"Free slot calculation","No double bookings","Admin for services and schedule","cd booking-slots && go run .","\u002Fog\u002Fen\u002Fbooking-slots.jpg",{"desktop":302,"desktop_sm":117,"mobile":303,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Fbooking-slots-desktop.webp","\u002Fshots\u002Fbooking-slots-mobile.webp",{"slug":254,"title":305,"type":93,"category":93,"lang":102,"kind":306,"stack":307,"description":310,"highlights":311,"run":315,"hue":316,"og":317,"shots":318},"Pulse: uptime monitor","infra",[102,120,308,309,72],"SSE","REST API","An uptime monitor: scheduled HTTP and TCP checks, uptime, p50\u002Fp95, an incident detector, a live SSE dashboard and a public status page. Go + SQLite without CGO.",[312,313,314,286],"A worker goroutine per check","Incidents after a series of failures","SSE dashboard and a public \u002Fstatus","cd uptime-monitor && set SEED_DEMO=1&& go run .\u002Fcmd\u002Fserver",101,"\u002Fog\u002Fen\u002Fuptime-monitor.jpg",{"desktop":319,"desktop_sm":320,"mobile":321,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Fuptime-monitor-desktop.webp","\u002Fshots\u002Fuptime-monitor-desktop-sm.webp","\u002Fshots\u002Fuptime-monitor-mobile.webp",{"slug":194,"title":323,"type":93,"category":93,"lang":102,"kind":306,"stack":324,"description":326,"highlights":327,"run":332,"hue":333,"og":334,"shots":335},"Conveyor: job queue",[102,120,309,308,325,72],"Prometheus","A background job queue: priorities, delayed and cron jobs, retries with backoff and jitter, dead-letter, idempotency keys, leases with fencing, Prometheus metrics.",[328,329,330,331],"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":336,"desktop_sm":337,"mobile":338,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Fjob-queue-desktop.webp","\u002Fshots\u002Fjob-queue-desktop-sm.webp","\u002Fshots\u002Fjob-queue-mobile.webp",{"slug":248,"title":340,"type":93,"category":93,"lang":102,"kind":341,"stack":342,"description":345,"highlights":346,"run":351,"hue":352,"og":353,"shots":354},"Rooms: realtime chat and board","realtime",[102,343,120,344,72],"WebSocket","Canvas","Realtime rooms: chat with SQLite history, an online list, a typing indicator, a shared board with strokes and cursors, anonymous nicknames. WebSocket (RFC 6455) written on the stdlib.",[347,348,349,350],"Own WebSocket layer (RFC 6455) on the stdlib","Slow-client disconnects and rate limits","Graceful shutdown with close code 1001","Load test: 360 connections in 6 rooms","cd realtime-rooms && set SEED_DEMO=1&& go run .\u002Fcmd\u002Fserver",46,"\u002Fog\u002Fen\u002Frealtime-rooms.jpg",{"desktop":355,"desktop_sm":356,"mobile":357,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Frealtime-rooms-desktop.webp","\u002Fshots\u002Frealtime-rooms-desktop-sm.webp","\u002Fshots\u002Frealtime-rooms-mobile.webp",{"slug":154,"title":359,"type":93,"category":93,"lang":102,"kind":306,"stack":360,"description":368,"highlights":369,"run":374,"hue":375,"og":376,"shots":377},"Sluice: API gateway",[102,361,362,363,364,308,325,365,366,367,72,48],"stdlib only","Reverse proxy","Circuit breaker","Token bucket","slog","Vanilla JS","embed","An API gateway on the pure stdlib: host\u002Fprefix routes from a JSON config with hot reload that keeps connections alive, round-robin and least-conn balancing, health checks, a per-node circuit breaker, retries of idempotent requests, rate limiting, hashed API keys, Prometheus metrics and a live SSE dashboard.",[370,371,372,373],"Zero dependencies: stdlib only","Config hot reload without dropping connections","Per-node circuit breaker and retries of idempotent requests","Load test: 4000 requests, 40 clients (a demo run)","cd api-gateway && set SEED_DEMO=1&& go run .\u002Fcmd\u002Fgateway",200,"\u002Fog\u002Fen\u002Fapi-gateway.jpg",{"desktop":378,"desktop_sm":379,"mobile":380,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Fapi-gateway-desktop.webp","\u002Fshots\u002Fapi-gateway-desktop-sm.webp","\u002Fshots\u002Fapi-gateway-mobile.webp",{"slug":227,"title":382,"type":93,"category":93,"lang":102,"kind":383,"stack":384,"description":390,"highlights":391,"run":396,"hue":397,"og":398,"shots":399},"Card Index: notes with search","data",[102,120,385,386,387,309,388,389,366,367,72,48],"FTS5","bm25","modernc.org\u002Fsqlite (no CGO)","Markdown (custom safe renderer)","SVG force-layout","A Markdown notes base on Go and SQLite: [[wiki]] links with backlinks and a link graph, FTS5 full-text search (bm25, highlighting, simplified Russian morphology), version history with its own diff, autosave with conflict resolution, .md export and import.",[392,393,394,395],"FTS5 search with bm25 and highlighting","Wiki links, backlinks and a link graph","Version history with its own diff","A custom safe Markdown renderer with an XSS test","cd notes-search && set SEED_DEMO=1&& go run .\u002Fcmd\u002Fserver",160,"\u002Fog\u002Fen\u002Fnotes-search.jpg",{"desktop":400,"desktop_sm":401,"mobile":402,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Fnotes-search-desktop.webp","\u002Fshots\u002Fnotes-search-desktop-sm.webp","\u002Fshots\u002Fnotes-search-mobile.webp",{"slug":241,"title":404,"type":93,"category":93,"lang":102,"kind":383,"stack":405,"description":414,"highlights":415,"run":420,"hue":421,"og":422,"shots":423},"Raft KV: a key-value store on Raft",[102,406,407,408,361,409,308,410,411,412,413,366,72,48],"Raft","Distributed systems","Consensus","HTTP\u002FJSON","WAL + fsync","Snapshots","Linearizability","Deterministic simulation testing","A from-scratch teaching implementation of Raft on the pure stdlib: leader election, log replication, quorum commit, a log and term\u002Fvote on disk with fsync, snapshots with compaction, linearizable reads (read-index) and follower-to-leader redirects. It is tested with a deterministic network and time simulator that checks linearizability; the dashboard can kill the leader and cut the network (demo).",[416,417,418,419],"Raft from scratch on the stdlib, no raft libraries","A deterministic network and time simulator + a linearizability check","Log and term\u002Fvote on disk with fsync, snapshots and compaction","A dashboard to kill the leader and cut the network (demo)","cd raft-kv && set SEED_DEMO=1&& go run .\u002Fcmd\u002Fraft-kv",290,"\u002Fog\u002Fen\u002Fraft-kv.jpg",{"desktop":424,"desktop_sm":425,"mobile":426,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Fraft-kv-desktop.webp","\u002Fshots\u002Fraft-kv-desktop-sm.webp","\u002Fshots\u002Fraft-kv-mobile.webp",{"slug":164,"title":428,"type":93,"category":93,"lang":102,"kind":429,"stack":430,"description":439,"highlights":440,"run":445,"hue":446,"og":447,"shots":448},"Keyring: an authentication service","auth",[102,431,120,387,432,433,434,435,436,437,438,366,367,72,48],"stdlib crypto","JWT EdDSA\u002FEd25519","JWKS","PBKDF2","TOTP","RBAC","REST","OpenAPI 3","An authentication and authorization service in Go: EdDSA JWTs with key rotation and JWKS, refresh tokens with rotation and theft detection, TOTP 2FA (RFC 6238) with backup codes, RBAC, lockout on brute force, password reset by a one-time token, an audit log, a device list, openapi.yaml. Not independently audited, not a production IdP.",[441,442,443,444],"EdDSA JWTs with key rotation and JWKS","Refresh tokens with rotation and reuse detection","TOTP per RFC 6238, checked against the RFC test vectors","An append-only audit log (database triggers)","cd auth-service && set SEED_DEMO=1&& go run .\u002Fcmd\u002Fserver",20,"\u002Fog\u002Fen\u002Fauth-service.jpg",{"desktop":449,"desktop_sm":450,"mobile":451,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Fauth-service-desktop.webp","\u002Fshots\u002Fauth-service-desktop-sm.webp","\u002Fshots\u002Fauth-service-mobile.webp",{"slug":180,"title":453,"type":93,"category":93,"lang":102,"kind":262,"stack":454,"description":461,"highlights":462,"run":467,"hue":468,"og":469,"shots":470},"Ledger: personal finance tracker",[102,120,387,309,455,70,456,91,457,458,459,72,48,434,460],"Nuxt 4","TypeScript","SVG charts","vitest","ESLint","CSV import\u002Fexport","Personal finance tracking: accounts in different currencies with manual exchange rates, income, expenses and transfers, budgets, payments on a cron-like schedule, CSV import with a preview, reports. Money is stored only in integer minor units, users' data is isolated, and the charts are drawn in SVG with no library. Go + SQLite with a Nuxt 4 front end.",[463,464,465,466],"Money only in integer minor units","Multi-currency with manual exchange rates","CSV import with a preview and a dry run","Hand-made SVG charts, no library","cd finance-tracker && set SEED_DEMO=1&& go run .",140,"\u002Fog\u002Fen\u002Ffinance-tracker.jpg",{"desktop":471,"desktop_sm":472,"mobile":473,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Ffinance-tracker-desktop.webp","\u002Fshots\u002Ffinance-tracker-desktop-sm.webp","\u002Fshots\u002Ffinance-tracker-mobile.webp",{"slug":233,"title":475,"type":93,"category":93,"lang":102,"kind":341,"stack":476,"description":480,"highlights":481,"run":486,"hue":487,"og":488,"shots":489},"Pixel Wall: a shared canvas",[102,361,343,477,366,367,478,479,72,48],"Canvas 2D","Binary protocol","Snapshot + journal","A shared 256x256 canvas in the spirit of r\u002Fplace: 16 colors, a cooldown per session and IP, an own WebSocket layer on the stdlib (RFC 6455) with a binary protocol (4 bits per pixel), a snapshot plus deltas, a snapshot with a journal and recovery, a timelapse, zoom and pan, a minimap, PNG export and admin tools. A side project.",[482,483,484,485],"Own WebSocket (RFC 6455) on the stdlib","A binary protocol: 4 bits per pixel","Snapshot + journal with crash recovery","A timelapse over the change journal","cd pixel-wall && set SEED_DEMO=1&& set ADMIN_TOKEN=secret&& go run .\u002Fcmd\u002Fserver",320,"\u002Fog\u002Fen\u002Fpixel-wall.jpg",{"desktop":490,"desktop_sm":491,"mobile":492,"dw":275,"dh":276,"mw":277,"mh":278},"\u002Fshots\u002Fpixel-wall-desktop.webp","\u002Fshots\u002Fpixel-wall-desktop-sm.webp","\u002Fshots\u002Fpixel-wall-mobile.webp",1792762187484]