[{"data":1,"prerenderedAt":238},["ShallowReactive",2],{"api:\u002Fapi\u002Fconfig:en":3,"api:\u002Fapi\u002Fprofile:":8,"api:\u002Fapi\u002Fcategories:en":20,"api:\u002Fapi\u002Fprojects\u002Flogslice:en":172,"api:\u002Fapi\u002Fnotes:en":217},{"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":160,"title":161,"type":144,"category":144,"lang":122,"stack":173,"description":178,"highlights":179,"run":184,"hue":163,"og":185,"shots":186,"case":193,"case_lang":5,"prev":215,"next":216},[122,171,170,174,175,176,177,48,141],"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.",[180,181,182,183],"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":187,"desktop_sm":162,"mobile":188,"dw":189,"dh":190,"mw":191,"mh":192},"\u002Fshots\u002Flogslice-desktop.webp","\u002Fshots\u002Flogslice-mobile.webp",1280,800,390,844,{"about":194,"features":197,"run":206,"notes":210},[195,196],"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.",[198,199,200,201,202,203,204,205],"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",[207,208,209,184],"git clone \u003Crepository on request> logslice","cd logslice","python -m venv .venv && .venv\u002Fbin\u002Fpip install .",[211,212,213,214],"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":155,"title":156},{"slug":165,"title":166},[218,223,228,233],{"slug":219,"lang":5,"title":220,"date":221,"summary":222,"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":224,"lang":5,"title":225,"date":221,"summary":226,"project":227,"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.","job-queue",{"slug":229,"lang":5,"title":230,"date":221,"summary":231,"project":232,"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.","uptime-monitor",{"slug":234,"lang":5,"title":235,"date":221,"summary":236,"project":237,"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.","realtime-rooms",1793230266317]