[{"data":1,"prerenderedAt":237},["ShallowReactive",2],{"api:\u002Fapi\u002Fconfig:en":3,"api:\u002Fapi\u002Fprofile:":8,"api:\u002Fapi\u002Fcategories:en":19,"api:\u002Fapi\u002Fprojects\u002Flogslice:en":171,"api:\u002Fapi\u002Fnotes:en":216},{"email":4,"lang":5,"name":6,"role":7},"djrciv@gmail.com","en","Ewsirdev","Web developer: websites, landing pages and Go services",{"name":6,"handle":6,"contacts":9,"note":18},{"email":10,"github":12,"telegram":15},{"url":11,"label":4},"mailto:djrciv@gmail.com",{"url":13,"label":14},"https:\u002F\u002Fgithub.com\u002Fewsir247","github.com\u002Fewsir247",{"url":16,"label":17},"https:\u002F\u002Ft.me\u002FEwsirdev","@Ewsirdev","Contacts: Telegram, GitHub, email. This file is the single source of contacts for the site, the contact block, JSON-LD sameAs, security.txt and llms.txt.",[20,49,80,108,142],{"slug":21,"title":22,"blurb":23,"variant":24,"palette":25,"layout":26,"count":27,"preview":28,"stack":44},"landings","Landing pages","One page, one job. Hand-written markup where possible, plus one WebGL experiment.","ink","cold","shots",6,[29,34,39],{"slug":30,"title":31,"shot":32,"hue":33},"landing-studio","Halftone: lighting studio","\u002Fshots\u002Flanding-studio-desktop-sm.webp",212,{"slug":35,"title":36,"shot":37,"hue":38},"landing-saas","Kill Switch: subscription tracker","\u002Fshots\u002Flanding-saas-desktop-sm.webp",182,{"slug":40,"title":41,"shot":42,"hue":43},"landing-event","Small Scale: conference","\u002Fshots\u002Flanding-event-desktop-sm.webp",124,[45,46,47,48],"CSS","HTML","GitHub Actions","JS",{"slug":50,"title":51,"blurb":52,"variant":53,"palette":54,"layout":55,"count":56,"langs":57,"preview":61,"stack":77},"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,[58],{"lang":59,"count":60},"TypeScript",1,[62,67,72],{"slug":63,"title":64,"shot":65,"hue":66},"legal-multipage-site","Multi-page legal services website","\u002Fshots\u002Flegal-multipage-site-desktop-sm.webp",250,{"slug":68,"title":69,"shot":70,"hue":71},"niche-landings","Catalog of 10 niche demo landing pages","\u002Fshots\u002Fniche-landings-desktop-sm.webp",32,{"slug":73,"title":74,"shot":75,"hue":76},"docs-engine","Sverlo: a documentation generator in Node.js","\u002Fshots\u002Fdocs-engine-desktop-sm.webp",25,[47,59,78,79],"Vue 3","Astro",{"slug":81,"title":82,"blurb":83,"variant":84,"palette":85,"layout":86,"count":87,"langs":88,"preview":90,"stack":105},"apps","Web apps","Interface plus server: auth, data, e-mail. Apps you sign in to.","beads","warm","phone",3,[89],{"lang":59,"count":60},[91,96,101],{"slug":92,"title":93,"shot":94,"hue":95},"bad-club-booking-app","Bad Club: seat booking for a gaming coworking space","\u002Fshots\u002Fbad-club-booking-app-desktop-sm.webp",150,{"slug":97,"title":98,"shot":99,"hue":100},"typing-lab","typing-lab: a touch-typing trainer","\u002Fshots\u002Ftyping-lab-desktop-sm.webp",45,{"slug":102,"title":103,"shot":104,"hue":100},"budget-split","budget-split: shared expense tracker","\u002Fshots\u002Fbudget-split-desktop-sm.webp",[59,106,78,107],"Vite","axe",{"slug":109,"title":110,"blurb":111,"variant":112,"palette":113,"layout":114,"count":115,"langs":116,"preview":123,"stack":139},"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,[117,120,122],{"lang":118,"count":119},"Go",12,{"lang":121,"count":60},"Python",{"lang":59,"count":60},[124,129,134],{"slug":125,"title":126,"shot":127,"hue":128},"kanban-tasks","Amber: kanban board","\u002Fshots\u002Fkanban-tasks-desktop-sm.webp",344,{"slug":130,"title":131,"shot":132,"hue":133},"link-shortener","Short: link shortener","\u002Fshots\u002Flink-shortener-desktop-sm.webp",111,{"slug":135,"title":136,"shot":137,"hue":138},"booking-slots","Appointment booking","\u002Fshots\u002Fbooking-slots-desktop-sm.webp",65,[140,118,141,47],"Docker","SQLite",{"slug":143,"title":144,"blurb":145,"variant":146,"palette":25,"layout":147,"count":87,"langs":148,"preview":152,"stack":168},"cli","CLI tools","Terminal programs: one binary, clear flags, an exit code you can check in a script.","film","terminal",[149,151],{"lang":118,"count":150},2,{"lang":121,"count":60},[153,158,163],{"slug":154,"title":155,"shot":156,"hue":157},"gitpulse","GitPulse: git repository analytics","\u002Fshots\u002Fgitpulse-desktop-sm.webp",7,{"slug":159,"title":160,"shot":161,"hue":162},"logslice","logslice: log analysis with no dependencies","\u002Fshots\u002Flogslice-desktop-sm.webp",160,{"slug":164,"title":165,"shot":166,"hue":167},"envguard","envguard: a linter and a safe for .env files","\u002Fshots\u002Fenvguard-desktop-sm.webp",35,[169,140,47,170],"CLI","stdlib only",{"slug":159,"title":160,"type":143,"category":143,"lang":121,"stack":172,"description":177,"highlights":178,"run":183,"hue":162,"og":184,"shots":185,"case":192,"case_lang":5,"prev":214,"next":215},[121,170,169,173,174,175,176,47,140],"SVG","pytest","ruff","mypy","A Python 3.11+ CLI on the standard library only: it streams nginx\u002Fapache (combined), JSON-lines, logfmt and syslog logs (gz, bz2, xz too), computes statistics and tops, clusters similar errors, finds load spikes by z-score and EWMA and builds a single HTML report with SVG charts and a heatmap. A side project.",[179,180,181,182],"Standard library only, pip install pulls nothing","Error clusters by template and anomalies with two methods (z-score and EWMA)","One self-contained HTML report: SVG, heatmap, light and dark themes","53 tests, ruff and mypy --strict; 1 million combined lines in 8.2 s (a single run, Windows, CPython 3.12.10)","logslice report access.log -o report.html","\u002Fog\u002Fen\u002Flogslice.jpg",{"desktop":186,"desktop_sm":161,"mobile":187,"dw":188,"dh":189,"mw":190,"mh":191},"\u002Fshots\u002Flogslice-desktop.webp","\u002Fshots\u002Flogslice-mobile.webp",1280,800,390,844,{"about":193,"features":196,"run":205,"notes":209},[194,195],"logslice is a Python console utility for log analysis: it reads nginx\u002Fapache combined, JSON-lines, logfmt and syslog, including gz, bz2 and xz compressed files, and shows statistics, tops, clusters of similar errors and load spikes. A side project.","Python 3.11+ standard library only: installing downloads nothing. A file is read as a stream, so the memory holds counters rather than lines; errors are grouped by a template with numbers and identifiers normalized, and anomalies are found with a statistical threshold (z-score or EWMA). The result is the same for the terminal, JSON and HTML.",[197,198,199,200,201,202,203,204],"The commands stats, top, errors, slice, anomalies, report and serve; common flags --format, --from\u002F--to (ISO, epoch or -90m), --json, --color, exit codes 0\u002F1\u002F2\u002F3\u002F4\u002F130","Formats: nginx\u002Fapache combined, JSON-lines, logfmt, syslog (RFC 3164 and 5424) with auto-detection from the first 300 lines; gz, bz2 and xz by magic bytes, with limits on line size, volume and compression ratio","Clusters of similar errors by template: count, share, interval and examples","Anomalies: RPS spikes and drops, error spikes, the zscore and ewma methods with a configurable window and threshold","A single-file HTML report with no external requests: requests over time, a weekday × hour heatmap, tops, a latency distribution, error clusters; a strict CSP, light and dark themes, a table alternative for every chart","serve shows the same report on 127.0.0.1 with Host and Origin checks; the page is closed to indexing by default","53 tests, ruff, mypy --strict; hypothesis property tests, poison lines, a gzip bomb, XSS and ANSI injection in the output; axe at 390 and 1280 px: 0 violations","One run on 1 million combined lines (Windows 11, CPython 3.12.10): 8.2 s (about 122 thousand lines\u002Fs), peak memory 64 MB",[206,207,208,183],"git clone \u003Crepository on request> logslice","cd logslice","python -m venv .venv && .venv\u002Fbin\u002Fpip install .",[210,211,212,213],"There is no live version: it is a console utility. The screenshots were taken on synthetic logs with fictional addresses from documentation ranges.","Times are shown in UTC. Auto-detection looks only at the first 300 lines and one format per input. Anomalies are a statistical threshold without seasonality: noisy data gives weak hits.","Parsing runs in a single thread. The speed was measured once, on one machine: other hardware and systems will give other numbers.","serve is not meant for the internet: HTTP without TLS or authentication, loopback only.",{"slug":154,"title":155},{"slug":164,"title":165},[217,222,227,232],{"slug":218,"lang":5,"title":219,"date":220,"summary":221,"project":135,"minutes":60},"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":223,"lang":5,"title":224,"date":220,"summary":225,"project":226,"minutes":150},"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.","job-queue",{"slug":228,"lang":5,"title":229,"date":220,"summary":230,"project":231,"minutes":150},"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.","uptime-monitor",{"slug":233,"lang":5,"title":234,"date":220,"summary":235,"project":236,"minutes":150},"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.","realtime-rooms",1793297827643]