docs: Add personas, use cases, user stories, and requirements

docs/design/personas.md

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+# Personas
+
+## 1. **Sophie - The Small Business Owner**
+
+- **Age:** 32
+- **Background:** Owns a small e-commerce website.
+- **Tech-savviness:** Moderate; familiar with basic software and e-commerce
+  tools.
+- **Needs:** A reliable backup system, easy-to-use interface, and affordable
+  rates.
+- **Pain Points:** Previous backup solutions were too complicated or pricey.
+  Lost data once due to a failed backup.
+- **Goals:** Ensure that all her business data is backed up securely, easily
+  retrieve data when needed.
+
+## 2. **Arjun - The IT Manager**
+
+- **Age:** 41
+- **Background:** IT Manager for a mid-size company with 200+ employees.
+- **Tech-savviness:** High; knows ins and outs of most enterprise software.
+- **Needs:** A scalable backup solution, deduplication to save space, advanced
+  security features.
+- **Pain Points:** Dealing with multiple backup tools for different types of
+  data, storage limitations.
+- **Goals:** Centralize the backup process, ensure quick data restoration, and
+  streamline IT operations.
+
+## 3. **Elena - The Freelancer**
+
+- **Age:** 29
+- **Background:** Freelance graphic designer.
+- **Tech-savviness:** Moderate; uses specific tools for her design work.
+- **Needs:** A simple backup solution that can handle large files, automatic
+  backups.
+- **Pain Points:** Lost a project once due to a hard drive crash, cloud storage
+  subscriptions becoming too expensive.
+- **Goals:** Protect her portfolio and client projects, ensure she doesn't lose
+  time redoing lost work.
+
+## 4. **Martin - The Retiree**
+
+- **Age:** 67
+- **Background:** Retired school principal, now writes memoirs and short
+  stories.
+- **Tech-savviness:** Basic; uses a computer primarily for word processing and
+  web browsing.
+- **Needs:** A straightforward backup tool, clear instructions, preferably with
+  visual guides.
+- **Pain Points:** Complicated tech jargon, fears of losing his writings.
+- **Goals:** Keep his digital memories and writings safe for future generations.
+
+## 5. **Nadia - The Academic Researcher**
+
+- **Age:** 35
+- **Background:** PhD in Biology, conducts extensive research with large
+  datasets.
+- **Tech-savviness:** Moderate-to-High; adept with research tools and databases.
+- **Needs:** A backup solution that can handle diverse file types, easy data
+  retrieval, metadata preservation.
+- **Pain Points:** Managing diverse datasets, ensuring long-term data
+  preservation.
+- **Goals:** Secure her research, share datasets without loss of fidelity,
+  compliance with academic data storage norms.
+
+## 6. **Liam - The Digital Artist**
+
+- **Age:** 23
+- **Background:** Digital artist and animator who regularly works on large
+  projects.
+- **Tech-savviness:** High; familiar with advanced design tools and software.
+- **Needs:** A backup system that supports large file formats, auto-syncing, and
+  version control.
+- **Pain Points:** Slow upload speeds, backup solutions not supporting all file
+  formats.
+- **Goals:** Protect his art, easily retrieve older versions of his work.
+
+## 7. **Maria - The Non-Profit Organizer**
+
+- **Age:** 45
+- **Background:** Runs a non-profit focused on education for underprivileged
+  children.
+- **Tech-savviness:** Moderate; basic office software and social media.
+- **Needs:** Affordable backup solutions, secure storage for donor data, easy
+  collaboration tools.
+- **Pain Points:** Limited budget, ensuring data privacy.
+- **Goals:** Keep organizational data safe, access backups from remote
+  locations.
+
+## 8. **Takumi - The Independent Game Developer**
+
+- **Age:** 28
+- **Background:** Develops indie games, works from home.
+- **Tech-savviness:** Very high; proficient in various programming languages and
+  game engines.
+- **Needs:** Large storage capacities, high-speed backups, integration with
+  development environments.
+- **Pain Points:** Version conflicts, loss of game assets or code.
+- **Goals:** Streamlined development process, protection against data loss.
+
+## 9. **Fatima - The College Student**
+
+- **Age:** 20
+- **Background:** Studying Computer Science.
+- **Tech-savviness:** Moderate-to-high; regularly uses coding platforms and
+  academic tools.
+- **Needs:** Affordable backup solutions, mobile access to backups.
+- **Pain Points:** Previous backup solutions were too complicated or unreliable.
+- **Goals:** Secure academic projects, quick data restoration during exam times.
+
+## 10. **Albert - The Travel Blogger**
+
+- **Age:** 38
+- **Background:** Travels the world and documents his experiences through photos
+  and writing.
+- **Tech-savviness:** Moderate; skilled in content creation tools.
+- **Needs:** Backup solutions accessible from different parts of the world,
+  mobile-friendly.
+- **Pain Points:** Lost photos/videos from past trips, connectivity issues.
+- **Goals:** Safeguard memories, quick uploads even from remote areas.
+
+## 11. **Aisha - The Integrative Developer**
+
+- **Age**: 28
+- **Background**: Software Developer at a mid-sized tech company
+- **Tech-savviness**: Advanced
+- **Needs**: Robust and reliable library, clear documentation, integration
+  examples, extensive customization.
+- **Pain Points**: poor documentation, integration conflicts, performance
+  issues.
+- **Goals**: Aims to develop scalable and feature-rich applications. Seeks
+  reliable and efficient external libraries to enhance her software's
+  capabilities without reinventing the wheel.

docs/design/requirements.md

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+# Requirements
+
+1. **Automated Backup Scheduling**
+
+   - The system should allow for automated backups at specified intervals
+     (daily, weekly, monthly, etc.).
+
+1. **Easy Restoration**
+
+   - Users should be able to quickly and easily restore data from the backups,
+     preferably with a one-click solution.
+
+1. **Selective Backup**
+
+   - The solution should allow users to select specific data sets or files for
+     backup.
+
+1. **Centralized Management Dashboard**
+
+   - A unified dashboard where users (especially those managing multiple
+     systems) can oversee all backups.
+
+1. **User Access Control & Role-based Permissions**
+
+   - Different levels of access and permissions to ensure that data integrity
+     and security are maintained.
+
+1. **Large File Handling without Compression Loss**
+
+   - The system should handle the backup of large files while maintaining their
+     original quality.
+
+1. **Auto-sync Feature**
+
+   - A feature that automatically syncs and backs up directories or specified
+     data.
+
+1. **Guided Backup Process**
+
+   - For users who are not tech-savvy, a step-by-step guide to backing up data.
+
+1. **Efficient Deduplication Process**
+
+   - To ensure storage is used efficiently by avoiding duplicate backups of
+     identical files.
+
+1. **Shareable Backup Links**
+
+   - Generation of secure links to backup datasets/files for sharing.
+
+1. **Version Control**
+
+   - The system should keep track of different versions of backed-up files,
+     allowing users to revert if needed.
+
+1. **Bulk Backup**
+
+   - Allow users to backup large sets of data or entire directories at once.
+
+1. **Strong Encryption and Data Security**
+
+   - All backed-up data, especially sensitive information, should be encrypted
+     and stored securely.
+
+1. **Remote Access Capability**
+
+   - Users should be able to access the backup solution from different locations
+     or devices.
+
+1. **Integration with Other Platforms**
+
+   - E.g., Code repositories, blogging platforms, etc.
+
+1. **Rapid Data Recovery**
+
+   - Fast restore features for urgent data recovery needs.
+
+1. **Offline Backup Queuing**
+
+   - Allow backups to be initiated offline and processed once connectivity is
+     available.
+
+1. **High-speed Data Uploads**
+
+   - Efficiently handle and quickly upload large files or data sets.
+
+1. **Documentation Clarity**
+
+   - The backup solution library should have clear and comprehensive
+     documentation. This will enable developers like Aisha to integrate the
+     library seamlessly.
+
+1. **Customization Options**
+
+   - The library should provide a variety of settings and configurations that
+     developers can adjust, ensuring it fits various software's unique
+     requirements.
+
+1. **Test Environment**
+
+   - The backup solution should offer a sandbox or test mode. This helps
+     developers to test the library's functionalities without affecting real
+     data.
+
+1. **Active Support Community**
+
+   - An active forum or community where developers can post questions, share
+     experiences, and offer solutions. Quick response times are crucial.
+
+1. **Error Handling**
+
+   - The library should be designed with robust error handling and should
+     provide descriptive error messages. This aids developers in diagnosing
+     integration or functionality issues.
+
+1. **Compatibility**
+
+   - Ensure the core library is compatible with a range of programming languages
+     and frameworks to cater to a diverse developer base.
+
+1. **Scalability**
+
+   - As software may grow and handle more data, the backup library should be
+     scalable to accommodate increasing data without performance bottlenecks.