[{"data":1,"prerenderedAt":230},["ShallowReactive",2],{"api:\u002Fapi\u002Fconfig:en":3,"api:\u002Fapi\u002Fprofile:":8,"api:\u002Fapi\u002Fcategories:en":20,"api:\u002Fapi\u002Fprojects\u002Flogslice:en":164,"api:\u002Fapi\u002Fnotes:en":209},{"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.",[21,50,78,100,136],{"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":74},"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",3,[59,64,69],{"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,{"slug":70,"title":71,"shot":72,"hue":73},"docs-engine","Sverlo: a documentation generator in Node.js","\u002Fshots\u002Fdocs-engine-desktop-sm.webp",25,[48,75,76,77],"Vue 3","Bootstrap 5","Cloudflare Pages",{"slug":79,"title":80,"blurb":81,"variant":82,"palette":83,"layout":84,"count":85,"preview":86,"stack":97},"apps","Web apps","Interface plus server: auth, data, e-mail. Apps you sign in to.","merge","warm","phone",2,[87,92],{"slug":88,"title":89,"shot":90,"hue":91},"bad-club-booking-app","Bad Club: seat booking for a gaming coworking space","\u002Fshots\u002Fbad-club-booking-app-desktop-sm.webp",150,{"slug":93,"title":94,"shot":95,"hue":96},"typing-lab","typing-lab: a touch-typing trainer","\u002Fshots\u002Ftyping-lab-desktop-sm.webp",45,[75,77,98,99],"Express","GSAP",{"slug":101,"title":102,"blurb":103,"variant":104,"palette":105,"layout":106,"count":107,"langs":108,"preview":117,"stack":133},"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.","torus","acid","list",14,[109,112,115],{"lang":110,"count":111},"Go",12,{"lang":113,"count":114},"Python",1,{"lang":116,"count":114},"TypeScript",[118,123,128],{"slug":119,"title":120,"shot":121,"hue":122},"kanban-tasks","Amber: kanban board","\u002Fshots\u002Fkanban-tasks-desktop-sm.webp",344,{"slug":124,"title":125,"shot":126,"hue":127},"link-shortener","Short: link shortener","\u002Fshots\u002Flink-shortener-desktop-sm.webp",111,{"slug":129,"title":130,"shot":131,"hue":132},"booking-slots","Appointment booking","\u002Fshots\u002Fbooking-slots-desktop-sm.webp",65,[134,110,135,48],"Docker","SQLite",{"slug":137,"title":138,"blurb":139,"variant":140,"palette":55,"layout":141,"count":57,"langs":142,"preview":145,"stack":161},"cli","CLI tools","Terminal programs: one binary, clear flags, an exit code you can check in a script.","film","terminal",[143,144],{"lang":110,"count":85},{"lang":113,"count":114},[146,151,156],{"slug":147,"title":148,"shot":149,"hue":150},"gitpulse","GitPulse: git repository analytics","\u002Fshots\u002Fgitpulse-desktop-sm.webp",7,{"slug":152,"title":153,"shot":154,"hue":155},"logslice","logslice: log analysis with no dependencies","\u002Fshots\u002Flogslice-desktop-sm.webp",160,{"slug":157,"title":158,"shot":159,"hue":160},"envguard","envguard: a linter and a safe for .env files","\u002Fshots\u002Fenvguard-desktop-sm.webp",35,[162,134,48,163],"CLI","stdlib only",{"slug":152,"title":153,"type":137,"category":137,"lang":113,"stack":165,"description":170,"highlights":171,"run":176,"hue":155,"og":177,"shots":178,"case":185,"case_lang":5,"prev":207,"next":208},[113,163,162,166,167,168,169,48,134],"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.",[172,173,174,175],"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":179,"desktop_sm":154,"mobile":180,"dw":181,"dh":182,"mw":183,"mh":184},"\u002Fshots\u002Flogslice-desktop.webp","\u002Fshots\u002Flogslice-mobile.webp",1280,800,390,844,{"about":186,"features":189,"run":198,"notes":202},[187,188],"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.",[190,191,192,193,194,195,196,197],"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",[199,200,201,176],"git clone \u003Crepository on request> logslice","cd logslice","python -m venv .venv && .venv\u002Fbin\u002Fpip install .",[203,204,205,206],"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":147,"title":148},{"slug":157,"title":158},[210,215,220,225],{"slug":211,"lang":5,"title":212,"date":213,"summary":214,"project":129,"minutes":114},"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":216,"lang":5,"title":217,"date":213,"summary":218,"project":219,"minutes":85},"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":221,"lang":5,"title":222,"date":213,"summary":223,"project":224,"minutes":85},"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":226,"lang":5,"title":227,"date":213,"summary":228,"project":229,"minutes":85},"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",1792819120091]