User applications to cover with implementation

The minimal specification is only considered useful if it is possible an efficiently implement a service to solve each of the following use cases.

• Web search
• Collaboration
•   Engineering
•   Literary
•   Sheets
• Personal information management
• Communication
•   Social networking services
• Entertainment
• Education
•   Learn morse code
• Business
• Consumption
• Ephemeral sharing
• Mapping
• Productivity
•   Calculator

• web search engine
• portal search
• library catalogue

Collaboration

Engineering

• version controlled source code project, releases, code review, issue tracker
• web page source syntax validator, pretty printer

Literary

• wiki editing
• collaborative fan fiction

Sheets

• secuchart

Personal information management

• contacts
• personal diet scheduling
• personal calendar, alarms
• private file storage, file manager, backup, optional sharing

Communication

• webmail
• end to end encryption

Social networking services

• microblog, blog
• group eventing
• social bookmarking
• forum (mailing list)
• group chat
• media gallery sharing
• multiplayer games
• review and recommendation of products, services and vendors

Entertainment

• puzzles
• comics
• serial fiction stories
• charting social dynamics simulation

Education

interactive programming courses:

• PHP
• busybox sh, awk
• JavaScript (ucode)
• regexp

Learn morse code

Morse code keying drills: input through pressing enter rhythmically, by typing in dots and dashes or by whistling or tapping into the microphone.

Output dots, dashes, a blinking character or perhaps play back generated sound.

Business

• webshop
• interactive site builder for a company or association
• web hosting, web shell command line
• banking, donations
• CAPTCHA

Consumption

• metacircular web browser
• headless web browser engine library for scraping: search engine crawler, monitoring tool, automated full stack testing
• news portal
• weather forecasting
• stock prices
• feed aggregator

Ephemeral sharing

• text snippet sharing
• ephemeral image or file sharing

Mapping

• POI finder around location
• directions, turn by turn navigation
• ASCII art neighborhood visualizer
• Description for the visual impaired
• Contribution

Productivity

• spell checking
• ASCII art editor
• pixel art editor
• raster font editor
• publishing: business card editor, periodicals

Calculator

• celestial sundown, moon phase, tides, UV radiation
• average annual temperature and precipitation
• average day vs. night temperature per day of year
• agricultural timing, flowering, ripening
• allergens per time of year
• plant classifier based on leaves, flowers, fruit, branching
• tax
• machine translation (dictionary)

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