SQLite | Ecosyste.ms: Awesome

https://github.com/sylviachebetemth/biashara-first-healthcare

Biashara First Healthcare is a platform designed to streamline the connection between businesses and healthcare facilities.The platform features an interactive map powered by OpenLayers, allowing users to easily locate healthcare providers.

flask openlayers python3 reactjs sqlite

Last synced: 01 May 2026

https://github.com/amirhosseinhonardoust/ai-personal-study-tracker

An AI-driven productivity tracking app built with Python, Streamlit, SQLite, and Machine Learning. It logs and analyzes study sessions, predicts productivity using Random Forest models, and visualizes key insights to help learners improve focus, habits, and overall academic efficiency.

ai data-analytics data-visualization education learning-analytics machine-learning productivity python random-forest self-improvement sqlite streamlit student-success study-tracker time-management

Last synced: 07 May 2026

https://github.com/rebecaborges/burger-queen-api

api express postman sequelize sqlite

Last synced: 20 Jan 2026

https://github.com/snick512/shorturl

Generate short URLs with tracking.

api bash php shorturl sqlite stats tracker url visitor

Last synced: 10 Apr 2026

https://github.com/cristofima/xamarin-sqlite

Aplicación móvil con Xamarin Forms y SQlite

android ios mobile-app mvvm sqlite uwp xamarin-forms

Last synced: 01 May 2026

https://github.com/imdeepmind/codebot

A LSTM based Deep Learning model that generates random C/C++ code.

chromium code-generation codebot deep-learning language-model machine-learning nlp nltk python sqlite tensorflow tensorflow2 text-generation

Last synced: 13 Apr 2026

https://github.com/soloalex1/sqlist

Uma aplicação de lista de tarefas como estudo de caso sobre o uso do SQLite no Android.

android case-study java mobile sqlite

Last synced: 07 May 2026

https://github.com/ariamehr-m/fastapi-backend-course

A FastAPI-based backend project featuring a blog application, including database integration and environment management for rapid backend development and learning.

backend backend-api backend-template fastapi fastapi-course fastapi-crud fastapi-framework fastapi-sqlalchemy fastapi-template fastapi-tutorials python python-fastapi sqlite uvicorn

Last synced: 07 May 2026

https://github.com/amanasmuei/amem

The memory layer for AI coding tools. Local-first, semantic, works with Claude Code, Cursor, Windsurf & any MCP client.

ai claude-code cursor developer-tools embeddings mcp mcp-server memory sqlite typescript

Last synced: 08 Apr 2026

https://github.com/andreeadraghici/github-metrics-dashboard

This application serves as a web interface for interacting with GitHub API to establish metrics.

dashboard django-framework github-api metrics-visualization python rest-api sqlite webapp

Last synced: 27 Feb 2026

https://github.com/keanteng/serpent-astral

💠 Order Processing Solution for Small/Medium Warehouses in Malaysia

chakra-ui crud graphql graphql-yoga nextjs order-management prisma sqlite tailwindcss typescript warehouse

Last synced: 26 Feb 2026

https://github.com/reubenjohn/reeve-bot

Proactive AI Chief of Staff: A push-paradigm assistant that anticipates needs, filters noise, and manages your digital life through scheduled pulses and intelligent automation

ai-assistant async-python claude-integration fastmcp mcp-server proactive-ai productivity pulse-queue python sqlite telegram-bot

Last synced: 04 Mar 2026

https://github.com/oandrieu/mlsqlite

SQLite bindings for OCaml

ocaml sqlite

Last synced: 08 May 2026

https://github.com/lookinfome/vaxtrack_v1.1.0

Vax Track v1.1.0, built with ASP.NET MVC, now features a restructured architecture, a new DTO layer, normalized model relationships, redefined service methods, an enhanced admin page with additional charts, and an updated UI for improved usability.

ajax asp-net-core asp-net-mvc bootstrap csharp css html javascript sqlite

Last synced: 10 Apr 2026

https://github.com/whtsky/ocgc

OpenCode Garbage Collector. Analyze and reclaim storage used by OpenCode sessions, diffs, and snapshots

cleanup cli disk-space garbage-collector opencode python sqlite

Last synced: 01 Jun 2026

https://github.com/nerkoman/agent-kanban

Local-first kanban for AI-agent workflows. Drag a task to Approved and your AI coding agent picks it up via MCP and drives it through analyst → in_progress → testing on its own. MCP for Claude Code & Cline, OpenAPI for opencode / Open WebUI / Ollama / any function-calling LLM. SQLite + FastAPI, runs on localhost.

agent ai-agent ai-tools automation claude-code cline fastapi kanban local-first mcp mcp-server open-webui openapi opencode project-management python self-hosted sqlite task-manager webhook

Last synced: 11 May 2026

https://github.com/shugomatsuzawa/facial-paralysis-care

日本で顔面神経麻痺の重症度の評価に使われている40点法（柳原法）に基づきテストを行い、患者さんの自宅でのリハビリを支援するモバイルアプリ

expo expo-camera expo-sqlite medical-application mobile-app react-native react-native-paper react-navigation sqlite

Last synced: 10 Apr 2026

https://github.com/eusebioleite/fipe_rs

fipe_rs centralizes data from FIPE into a sqlite database.

fipe rust sqlite

Last synced: 07 Feb 2026

https://github.com/mahmoodhamdi/esports-flask

A comprehensive Flask REST API providing real-time data for the Esports World Cup, including tournaments, teams, players, matches, and news. Features advanced search, live data scraping, and a full admin interface.

api beautifulsoup4 cors cs2 data-scraping esports esports-api flask football liquipedia openapi python rest-api sqlite swagger valorant

Last synced: 08 May 2026

https://github.com/parimartha27/tanyani

This website is dedicated for Indonesian farmers to share their knowledge about farmer field. Created using bootstrap for the interface, flask for the backend and SQLite for the database

bootstrap5 farmers flask sqlite

Last synced: 08 May 2026

https://github.com/montag451/dqliterl

An Erlang client for Dqlite

database dqlite erlang otp sqlite

Last synced: 08 May 2026

https://github.com/michaelinzo/javasqlitedatabase

A SQLite Database for Android devices

android androidstudio database database-management sql sqlite

Last synced: 08 May 2026

https://github.com/skimmenthal13/asql

C# Library that let use multiple types of databases (SqlServer, Oracle, MySql, PostgreSQL, Sqlite) with same code

database events log migrator multidatabase mysql oracle orm performance postgresql sql sqlite sqlserver trace transactional

Last synced: 01 Feb 2026

https://github.com/melonask/bria

Bria is a Rust-based multi-pipeline job orchestrator. It ingests jobs from files, HTTP/webhooks, AMQP, cron, PostgreSQL, or SQLite, runs local, Docker, or WebAssembly tasks; and emits results to files, webhooks, AMQP, databases, or live streams.

amqp bria jobs ochestration pipeline postgresql rust sqlite tasks

Last synced: 08 Jun 2026

https://github.com/charlestaylor7/ormlite

Two way binding from Python Dataclasses to Sqlite tables

dataclass dataclasses orm orm-library python python3 sqlite sqlite3

Last synced: 13 Feb 2026

https://github.com/marieorens/egaz

E-Gaz is an application that allows users to order gas and have it delivered to their location without having to move.

app delivery flutter gaz mobile order sqlite

Last synced: 09 May 2026

https://github.com/juanfranciscocis/album_checker

This is a flutter project, The Fifa World Cup Qatar 2022 Album Sticker Checker. This is an app that will help you track the world cup stickers already glued.

album apis checker firebase flutter-apps sqlite worldcup2022

Last synced: 09 May 2026

https://github.com/martyniukkk/toolmaster

Tool Master is an all-in-one productivity app featuring a Todo List, Timer, and Flashlight, designed to simplify your daily tasks with ease and efficiency.

all-in-one-app android android-development clean-architecture dependency-injection flashlight koin kotlin mobile-app mvvm productivity-app sqlite task-manager time-tracking timer todo-list utility-tools

Last synced: 09 May 2026

https://github.com/elitan/tsql

A type-safe SQL query builder and database toolkit for TypeScript.

bun database mssql mysql nodejs postgres sql sqlite typescript

Last synced: 21 Sep 2025

https://github.com/seem/circleci-to-sqlite

Save data from CircleCI to a SQLite database

circleci datasette datasette-io datasette-tool dogsheep sqlite

Last synced: 09 May 2026

https://github.com/porebskk/simple-php-document-store

SimplePhpDocumentStore is a simple NoSQL database for storing php arrays and querying them.

database dbal documentation nosql php sqlite

Last synced: 13 Jan 2026

https://github.com/quaddarv1ne/domain_data_hub

Хаб с базами данных для различных сфер применения

client database database-management db ecommerce estate finance healthcare hotel logistics restaurant retail server sql sqlalchemy sqlite theater

Last synced: 15 Apr 2026

https://github.com/lorddarkula/easyql

SQLite wrapper for iOS

cocoapods database ios-lib objective-c objective-c-library sqlite

Last synced: 01 May 2026

https://github.com/markwylde/node-mini-migrations

A really simple node migrations library that is completely independant of any database or file system.

database migrations sqlite

Last synced: 01 May 2026

https://github.com/henriqueotogami/aula-django

Aula de Django, do Bootcamp Desenvolvedor Full Stack Python , na Digital Innovation One.

bootcamp digital-innovation-one django python sqlite

Last synced: 09 May 2026

https://github.com/shawnhack/exocortex

Personal unified memory system for AI agents. SQLite-backed, local-first, hybrid RAG retrieval with MCP integration.

ai claude embeddings entity-extraction hybrid-search knowledge-graph local-first mcp memory model-context-protocol personal-knowledge-management rag sqlite typescript

Last synced: 25 Feb 2026

https://github.com/mateolafalce/genesis-query

Genesis Query is a web application built with Flask that lets users submit and vote on prompts for ASI. Each user can leave a comment (prompt) and upvote others. The app displays the country flag of each user based on their IP, and includes pagination for browsing top-voted prompts.

asi flask prompt sqlite vote-application

Last synced: 09 May 2026

https://github.com/allworknoplay-95/confronto_inventario_per_data_ts

Questo script Python gestisce l'importazione, l'elaborazione e il confronto di inventari provenienti da diverse fonti. L'obiettivo è fornire una panoramica consolidata delle giacenze a una certa data, rilevando eventuali discrepanze tra i dati rilevati e quelli attesi.

comparison-tool mariadb python sqlite sshtunnel teamsystem

Last synced: 09 May 2026

https://github.com/fraineralex/discover-app

📍 Interactive local tourism guide app built with React Native and Expo.

expo google-places-api react-native sqlite

Last synced: 01 May 2026

https://github.com/alxrm/android-pull-db

Simple script that pulls the .db file from the connected device by package name

android bash bash-script bepis sqlite terminal

Last synced: 12 Apr 2026

https://github.com/HackfutSec/Detected

Detected : A powerful and user-friendly tool for detecting SQL injection vulnerabilities in web applications, supporting GET/POST requests, custom payloads, cookies, and detailed reporting.

cookies cybersecurity ethical-hacking ethical-hacking-tools hacking hacking-tool multithreading python sql-injection sqlite

Last synced: 01 Apr 2025

https://github.com/derek486/employee-app-v1

A full-stack employee management system with an Angular frontend and support for two interchangeable backends: Django (Python) and Express.js (Node.js)

angular16 django express mongodb sqlite

Last synced: 15 Apr 2026

https://github.com/alexandertiopan1212/streamlit_app_gis_clustering_fcm_pso

A Streamlit-based web application for geospatial clustering using Fuzzy C-Means (FCM) and Particle Swarm Optimization (PSO), visualized on an interactive map with support for shapefiles in .zip format. Includes a blog module for adding and managing user-generated articles.

fiona fuzzy-cmeans-clustering pso-algorithm python sqlite streamlit

Last synced: 09 May 2026

https://github.com/artinmohajeri/cars-for-sale-webscraping-beautifulsoup-tkinter-sqlite3

api beautifulsoup beautifulsoup4 bs4-requests database gui python-api requests scraper sqlite sqlite-database sqlite3 tkinter tkinter-gui ttkbootstrap web-scraping

Last synced: 17 Apr 2026

https://github.com/hackfutsec/dumper

SQL Injection Dumper est un outil en ligne de commande conçu pour tester et exploiter les vulnérabilités d'injection SQL sur des sites Web. Il permet de détecter des failles SQL, d'extraire des informations sensibles telles que le nom de la base de données, les tables et les colonnes, puis de dumper les données des tables vulnérables.

injection payload php-vulnerabilities python python-scripts sql sqlite

Last synced: 09 May 2026

https://github.com/harshkapadia2/flask_course_task_manager

A simple task manager using Flask. From a YouTube video (link in README.md)

flask flask-api flask-application flask-sqlalchemy sqlite sqlite3

Last synced: 28 Apr 2026

https://github.com/marcosdvs/test

Billing application with Blazor Server, EntityFrameWorkCore, print button, and SQLite

blazor blazor-server bootstrap5 entity-framework-core invoicing-application sqlite

Last synced: 10 Apr 2026

https://github.com/abhinavraj23/votes

A voting maching app

android java sqlite

Last synced: 10 May 2026

https://github.com/xiaxia0414/monitor-upper-computer

基于qt5实现的粮仓监测系统的上位机，支持实时的串口数据波形显示，数据库，json加载保存配置

qss qt5 sqlite

Last synced: 10 May 2026

https://github.com/duydang2311/askkit

AI Chatbot w/ launcher application built with Rust

desktop rust sqlite svelte sveltekit tailwindcss tauri tiptap windows

Last synced: 15 Apr 2026

https://github.com/shahul01/mytimerv2

Multiple timers, always displaying. Built with Electron, React, tRPC & SQLite.

countdown countdown-timer electron express nodejs react sqlite timer trpc typescript

Last synced: 15 Apr 2026

https://github.com/simsononroad/easy_sqlite_db

This is a python library what makes easyer to use qlite

database library python sql sqlite

Last synced: 10 May 2026

https://github.com/imsma/springboot-sqlite

This repository contains a simple Spring Boot application that demonstrates how to integrate SQLite as an embedded database. This project is perfect for learning and understanding how to work with Spring Boot and an embedded database for development and testing purposes.

java jpa spring-boot sqlite

Last synced: 30 Apr 2026

https://github.com/deadislove/dotnet-hexacleanhybarch-template

Modular, testable backend architecture template in .NET 9. Combines Hexagonal + Clean Architecture with plug-in-style modules (Auth, User, etc.) and dynamic adapter registration for scalable systems.

api-template clearn-arch ddd docker-compose dockerfile dotnet health-check hexagonal-architecture jwt-authentication modular-design mssql plugin postgresql rate-limiting sqlite swagger-ui

Last synced: 12 Apr 2026

https://github.com/cihatsolak/netcore-unit-test

It is the process where we test the behavior of the smallest units of the project independently. Our action methods in the controller are actually small components, and we can observe their behavior with unit test. The sensitive point is the state of being independent from each other. When testing a method, the method to be tested should not relate to different methods.

autofixture efcore fluentassertions localdb moq-framework sqlite xunit-tests

Last synced: 30 Apr 2026

https://github.com/kinostl/mushdb

"A Role Based Access Key Value built over sqlite, inspired by [MUSHes](https://en.wikipedia.org/wiki/MUSH) object oriented databases.

key-value-store nodejs role-based-access sqlite sqlite3

Last synced: 11 May 2026

https://github.com/dipto9999/stock_portfolio_app

Tkinter application which enables users to analyze stock purchase transactions and simulate profits with previous market data.

data-science matplotlib oop python sqlite statistics tkinter ux-design

Last synced: 11 May 2026

https://github.com/pasunboneleve/cheap-rag

Simple RAG with hard guardrails. Answers only when local content is relevant — otherwise refuses. Cheap to run, cheap to understand, cheap to replace.

embeddings golang guardrails llm rag semantic-search sqlite unix-socket

Last synced: 08 Jun 2026

https://github.com/tdanks2000/create-electrobun-stack

Scaffold production-minded Electrobun desktop apps with Bun, React, TypeScript, Vite, typed RPC, and optional integrations.

biome boilerplate bun cli desktop-app drizzle electrobun react rpc scaffolding shadcn-ui sqlite tailwindcss tanstack-query tanstack-router template typescript vite

Last synced: 11 May 2026

https://github.com/tamimattafi/android-room-compound

A light-weight code generation library that helps reducing boilerplate code when working with relations in Room

android android-library compound kotlin ksp relationships room-database sqlite

Last synced: 12 May 2026

https://github.com/engageintellect/sveltekit-pocketbase-wip

cms pocketbase sqlite sveltekit tailwindcss

Last synced: 13 May 2026

https://github.com/albertoblaz/hackweek-graphql

React demo app wrapped in Electron that connects to a GraphQL backend built in JavaScript

apollographql create-react-app electron flow graphql javascript react sqlite styled-components

Last synced: 10 Apr 2026

https://github.com/tinuwalther/podepshtml

An example for using pode and PSHTML with mySQLite and Pester v5+.

bootstrap mermaid pester pode pshtml psnettools sqlite

Last synced: 28 Feb 2026

https://github.com/wartem/open_art_web_viewer_lite

A lightweight Python Flask web app using SQLite and JavaScript for browsing and searching artworks from various collections. Features dynamic image loading, search functionality, and infinite scrolling.

art dynamic flask infinite-scrolling javascript open python search sqlite web

Last synced: 16 Mar 2026

https://github.com/halojoy/php-blog-new7

Supports comments and images. Admin can edit and delete. Easy automatic install. SQLite or MySQL db.

blog captcha comments csrf delete edit images install markdown mysql pdo php sqlite

Last synced: 30 Apr 2026

https://github.com/timclicks/dataclerk

zero fuss data logging over HTTP

actix-web command-line data logging rust sqlite sqlite3 utility

Last synced: 30 Apr 2026

https://github.com/mekedron/wolt-stats

Unofficial hobby dashboard for syncing and exploring your Wolt order history.

dashboard delivery food sqlite svelte tailwindcss unnoficial vibe-coding wolt

Last synced: 12 Jun 2026

https://github.com/jpsala/copicu

Local-first clipboard workbench for search, scripts, and AI-assisted workflows.

ai automation clipboard clipboard-manager local-first productivity rust sqlite tauri typescript windows

Last synced: 13 Jun 2026

https://github.com/aliabbascheema/scheema_retail

This project is a practical implementation focused on Ipswich Retail, aiming to transition from a monolithic system architecture to a more scalable and efficient Django MVT (Model-View-Template) framework.

django django-mvt docker dom-manipulation e-commerce-project e-commerce-website github-actions javascript monolith-architecture python3 render scalability sqlite tailwind

Last synced: 09 Apr 2026

https://github.com/varavelio/nsqlite-ui

Web UI for NSQLite

nsqlite sqlite ui varavel web

Last synced: 14 Jun 2026

https://github.com/reza-saeedi-coding/netflix-data-analysis

A complete end-to-end Netflix dataset analysis using Python, SQL, and Matplotlib. Explores genres, content ratings, and trends using exploratory data analysis and visualizations.

data-analysis data-cleaning eda matplotlib netflix pandas portfolio-project python sql sqlite

Last synced: 17 Apr 2026

https://github.com/gustavohps10/crud-django

"C.R.U.D" de jogos construído com Django/Python

django materializecss python sqlite

Last synced: 10 Apr 2026

https://github.com/ayrton09/umbrellaranked-cs2

Native CounterStrikeSharp ranked system for CS2

counter-strike-2 counterstrikesharp cs2 csharp mysql ranked sqlite

Last synced: 15 Jun 2026

https://github.com/kieranmcm07/discord_moderation_bot

Feature-rich Discord moderation bot with tickets, AutoMod, appeals, activity tracking, music, and staff dashboards.

appeals automod discord-bot discord-py moderation-bot python sqlite tickets

Last synced: 15 Jun 2026

https://github.com/thegera4/favplaces-app

React-native app managed by Expo to save your favorite locations!

expo google-geocoding-api google-maps-api react-native sqlite

Last synced: 29 Apr 2026

https://github.com/fairspec/fairspec-standard

Fairspec is a data exchange format compatible with DataCite for metadata and JSON Schema for structured data

ckan csv data dataset excel fair fairspec json ods polars python quality schema sqlite table typescript validation zenodo

Last synced: 16 Jun 2026

https://github.com/alexxsouzaa/pymediagenda

PyMediAgenda é um sistema de gestão de agendamento e cadastro de consultas médicas desenvolvido em Python.

customtkinter python python3 sqlite sqlite3 tkinter

Last synced: 29 Apr 2026

https://github.com/martiinwalsh/tech-news-app

A flutter application that displays the top tech news stories using the Hacker News API.

flutter fluttter-apps hackernews-api sqlite

Last synced: 28 Mar 2025

https://github.com/clueing/share-nest

一个基于 Go 的轻量级自托管文件与文本分享服务，支持密码分享、在线预览、压缩包元信息预览、二进制元信息预览和简约实用的管理后台。

go golang sqlite

Last synced: 17 Jun 2026

https://github.com/erismardev/gopportunities

A job opportunities API built using Golang. The API uses Go-Gin as a router, SQLite as a database, and GoORM for database communication. It also includes Swagger for documentation and testing, and a well-organized package structure.

api gin go golang goorm rest sqlite swagger

Last synced: 29 Apr 2026

https://github.com/hectorzamoranogarcia/sql-gym-split

SQL-based system for strength-training analysis. It includes predictive models for fatigue management, deload (rest-week) optimization, and plateau detection using Window Functions and business logic.

data-engineering data-quality fatigue-management fitness-tracker gym-analytics predictive-analytics sql sqlite strength-training window-fu

Last synced: 08 Jun 2026

https://github.com/eznix86/sqlite-to-postgres-migrator

Little script to make SQLite to Postgres easy

postgres script sqlite

Last synced: 19 Jun 2026

https://github.com/calculationcollective/sqlcalculator

calculator sql sqlite

Last synced: 19 Jun 2026

https://github.com/jonudell/flowpipe-readme

Dashboards for DevOps. Visualize cloud configurations. Assess security posture against a huge library of benchmarks. Build custom dashboards with code.

aws azure cloud compliance dashboards-as-code devops gcp kubernetes postgres security sqlite visualization

Last synced: 10 Apr 2026

https://github.com/qanastek/pineapple-monitoring

A web monitoring application for servers clusters in Flask

api flask jinja2 jquery json lxml python rest-api sqlite sqlite3

Last synced: 15 Apr 2026

https://github.com/a350fan/purchase-statistics

Unofficial Flutter app for analyzing Steam purchases, spending, discounts, DLCs, backlog and playtime.

android backlog csv-export csv-import dart flutter game-tracker linux local-first material-design playtime purchase-tracker sqflite sqlite statistics steam windows

Last synced: 22 Jun 2026

https://github.com/nazli-d/rent-bike-and-car

Car and Bicycle Rental Project

database gui python rent rent-bikes rent-car-and-bike rentacar rental rental-management sqlite sqlite-database tkinter-gui

Last synced: 29 Apr 2026

https://github.com/delly-net/dbunny

A lightweight .NET database abstraction layer that provides a unified API for working with multiple database types. DBunny uses a provider pattern to enable database-specific implementations while maintaining a common interface.

csharp data-access database database-abstraction dotnet dotnet-standard provider-pattern sqlite

Last synced: 22 Jun 2026

https://github.com/aschollwoeck/asmerald

A library for writing type safe SQL in C#.

csharp postgresql sql sqlite

Last synced: 13 Apr 2026

https://github.com/arpitaswal/local-storage-offline-architecture

Flutter Local Storage & Offline Architecture Playground! This project is a comprehensive, production-ready educational workspace designed to teach developers the persistence options, structures, and offline-first design patterns available in the Flutter ecosystem.

dart drift-database flutter hive isar-database local-database localstorage offline-cache secure-storage sharedpreferences sqlite

Last synced: 25 Jun 2026

https://github.com/prempreetbrar/aplitrack

An app for tracking job applications; created by drawing an Entity-Relationship diagram, mapping it to the relational model, making a use-case diagram. Backend uses MVC architecture with authentication using JWT token, Brevo email handling, Multer file uploading.

email-notification error-handling expressjs javascript jwt-authentication jwt-authorization multer-fileupload mvc-architecture nodejs pugjs rest-api sequelize sqlite

Last synced: 24 Jan 2026

https://github.com/peter7775/go-iching

A Go application for I Ching divination with a Fiber-based HTTP API, a browser frontend, and persistent reading storage.

api-rest fiber go golang i-ching postgresql sqlite ui

Last synced: 25 Jun 2026

https://github.com/openwong2kim/wlog

See your Claude Code session's tokens, cost & tool decisions without standing up Grafana — a single-binary, local, zero-config observability dashboard with an embedded web UI and a native desktop app.

anthropic claude claude-code cli cost-tracking dashboard developer-tools golang llm monitoring observability opentelemetry otlp self-hosted sqlite tauri telemetry token-usage