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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.
diff --git a/docs/design/requirements.md b/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.
diff --git a/docs/design/use_cases.md b/docs/design/use_cases.md
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+# Use cases
+
+## Sophie - The Small Business Owner
+
+- **Use-Case 1: Automated Backup Scheduling**
+  - **Scenario:** Sophie wants to ensure that her e-commerce site's data is
+    backed up regularly without manual intervention.
+  - **Actions:** Sophie sets up an automated backup schedule for daily backups
+    at midnight.
+
+- **Use-Case 2: Transactional Data Recovery**
+  - **Scenario:** There's a glitch on her e-commerce platform and she loses a
+    day's worth of transactional data.
+  - **Actions:** Sophie uses the backup solution to quickly recover the specific
+    day's transaction data.
+
+## Arjun - The IT Manager
+
+- **Use-Case 1: Centralized Management**
+  - **Scenario:** Arjun wants to oversee all backups from one central dashboard.
+  - **Actions:** Arjun logs into the central dashboard to monitor and manage
+    backups for the entire company.
+
+- **Use-Case 2: Access Level Management**
+  - **Scenario:** Arjun needs to give specific team members permission to
+    initiate but not delete backups.
+  - **Actions:** Arjun sets role-based permissions for various team members.
+
+## Elena - The Freelancer
+
+- **Use-Case 1: Large File Handling**
+  - **Scenario:** Elena has designed a high-resolution poster for a client.
+  - **Actions:** Elena uses the backup solution to securely store the large
+    design file without quality loss.
+
+- **Use-Case 2: Portfolio Protection**
+  - **Scenario:** Elena's local hard drive crashes.
+  - **Actions:** Elena retrieves her entire portfolio from the backup solution,
+    ensuring she doesn’t lose her work.
+
+## Martin - The Retiree
+
+- **Use-Case 1: Photo Album Backup**
+  - **Scenario:** Martin wants to preserve old family photos digitally.
+  - **Actions:** Martin scans and backs up photo albums, relying on
+    deduplication to avoid redundant backups of similar photos.
+
+- **Use-Case 2: Guided Backup Wizard**
+  - **Scenario:** Martin is unsure of how to backup his new writings.
+  - **Actions:** Martin uses a step-by-step backup guide to securely store his
+    documents.
+
+## Nadia - The Academic Researcher
+
+- **Use-Case 1: Research Data Deduplication**
+  - **Scenario:** Nadia has multiple versions of a large dataset with small
+    differences.
+  - **Actions:** Nadia backs up her datasets, with the solution ensuring
+    deduplication to save space.
+
+- **Use-Case 2: Data Collaboration**
+  - **Scenario:** Nadia wants to share her dataset backup with a fellow
+    researcher.
+  - **Actions:** Nadia generates a secure, shareable link to her backup dataset.
+
+## Liam - The Digital Artist
+
+- **Use-Case 1: Version Control for Art**
+  - **Scenario:** Liam is working on a digital art piece and makes significant
+    changes daily.
+  - **Actions:** Liam uses the backup solution’s version control to save daily
+    iterations of his art.
+
+- **Use-Case 2: Bulk Backup for Projects**
+  - **Scenario:** Liam completes a big project with multiple art assets.
+  - **Actions:** Liam uses the backup solution to bulk-backup the entire project
+    folder.
+
+## Maria - The Non-Profit Organizer
+
+- **Use-Case 1: Donor Data Protection**
+  - **Scenario:** Maria collects sensitive donor data during a fundraising
+    event.
+  - **Actions:** Maria uses the backup solution to securely store this data with
+    strong encryption.
+
+- **Use-Case 2: Field Data Backup**
+  - **Scenario:** Maria collects data during a field visit in a remote area.
+  - **Actions:** Maria initiates an offline backup, which gets uploaded once
+    she's back in connectivity.
+
+## Takumi - The Independent Game Developer
+
+- **Use-Case 1: Codebase Backup with Deduplication**
+  - **Scenario:** Takumi has different game versions with shared assets.
+  - **Actions:** Takumi backs up his games, with the solution deduplicating
+    shared assets across versions.
+
+- **Use-Case 2: Rapid Recovery after a Bug**
+  - **Scenario:** A new code update introduces a major bug.
+  - **Actions:** Takumi quickly recovers the last stable version of his game
+    from the backup.
+
+## Fatima - The College Student
+
+- **Use-Case 1: Semester-wise Academic Backup**
+  - **Scenario:** At the end of every semester, Fatima wants to backup all her
+    academic projects and notes.
+  - **Actions:** Fatima organizes her data semester-wise and initiates backups
+    accordingly.
+
+- **Use-Case 2: Emergency Data Restoration**
+  - **Scenario:** Fatima accidentally deletes her thesis a week before
+    submission.
+  - **Actions:** Fatima quickly restores the deleted thesis from her backup
+    solution.
+
+## Albert - The Travel Blogger
+
+- **Use-Case 1: Backup from Remote Locations**
+  - **Scenario:** Albert is traveling in a remote location with limited
+    connectivity but wants to backup his new blogs and photos.
+  - **Actions:** Albert initiates an offline backup, which queues up and uploads
+    once he finds a stable connection.
+
+- **Use-Case 2: Blog Platform Integration**
+  - **Scenario:** Albert wants his blog platform to auto-backup every week.
+  - **Actions:** Albert integrates his blogging platform with the backup
+    solution for automated weekly backups.
+
+## Aisha - The Integrative Developer
+
+- **Use Case 1: Integrate Backup Library**
+  - **Scenario**: Aisha wants to integrate the deduplicated backup solution
+    library into her software.
+  - **Actions**:
+    1. Search and find the library in a package repository.
+    2. Review the documentation.
+    3. Install the library.
+    4. Implement initial backup functionalities in her software.
+    5. Test the integration.
+
+- **Use Case 2: Customize Backup Settings**
+  - **Scenario**: Aisha aims to customize the backup settings to suit her
+    software's needs.
+  - **Actions**:
+    1. Review library documentation for customization options.
+    2. Modify settings like backup frequency, destination, and deduplication
+       method.
+    3. Run tests to ensure the settings are applied correctly.
diff --git a/docs/design/user_stories.md b/docs/design/user_stories.md
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+# User stories
+
+## Sophie - The Small Business Owner
+
+- **As** Sophie,
+  - **I want** to schedule daily backups of my e-commerce site automatically,
+  - **So that** I don't have to remember to do it manually.
+
+- **As** Sophie,
+  - **I want** a one-click restoration feature,
+  - **So that** I can quickly retrieve lost or corrupted data.
+
+## Arjun - The IT Manager
+
+- **As** Arjun,
+  - **I want** to initiate backups for multiple systems in my company
+    simultaneously,
+  - **So that** I can ensure all systems are backed up efficiently.
+
+- **As** Arjun,
+  - **I want** a centralized dashboard to monitor backup health,
+  - **So that** I can ensure all backups are completed successfully and address
+    any issues promptly.
+
+## Elena - The Freelancer
+
+- **As** Elena,
+  - **I want** to backup large design files without compression losses,
+  - **So that** my designs retain their quality.
+
+- **As** Elena,
+  - **I want** the backup solution to auto-sync with my design directory,
+  - **So that** all changes are automatically backed up.
+
+## Martin - The Retiree
+
+- **As** Martin,
+  - **I want** step-by-step guidance when backing up data,
+  - **So that** I am confident I'm doing it right.
+
+- **As** Martin,
+  - **I want** a deduplicated backup of my photo collection,
+  - **So that** I don't waste storage space on repeated photos.
+
+## Nadia - The Academic Researcher
+
+- **As** Nadia,
+  - **I want** to backup large research datasets efficiently,
+  - **So that** I don't waste time and resources.
+
+- **As** Nadia,
+  - **I want** to generate shareable links for specific backup datasets,
+  - **So that** I can share data with fellow researchers easily.
+
+## Liam - The Digital Artist
+
+- **As** Liam,
+  - **I want** to backup entire project folders including all assets,
+  - **So that** I have a comprehensive backup of my work.
+
+- **As** Liam,
+  - **I want** high-speed uploads for backups,
+  - **So that** I don't waste time waiting for large files to upload.
+
+## Maria - The Non-Profit Organizer
+
+- **As** Maria,
+  - **I want** a secure backup for donor data,
+  - **So that** the privacy and trust of our donors are maintained.
+
+- **As** Maria,
+  - **I want** to access the backup system remotely during field visits,
+  - **So that** I can manage backups even when I'm away from the office.
+
+## Takumi - The Independent Game Developer
+
+- **As** Takumi,
+  - **I want** the backup solution to integrate with my code repositories,
+  - **So that** code backups are streamlined.
+
+- **As** Takumi,
+  - **I want** to store different versions of my game builds,
+  - **So that** I can easily revert or compare between versions.
+
+## Fatima - The College Student
+
+- **As** Fatima,
+  - **I want** to backup my academic projects at the end of each semester,
+  - **So that** I have a cumulative record of my academic progress.
+
+- **As** Fatima,
+  - **I want** a rapid restore feature,
+  - **So that** I can quickly get back crucial data during exam times or project
+    submissions.
+
+## Albert - The Travel Blogger
+
+- **As** Albert,
+  - **I want** to quickly backup photos and videos from my travels,
+  - **So that** my memories are preserved irrespective of device failures.
+
+- **As** Albert,
+  - **I want** to schedule regular backups of my blog content,
+  - **So that** my written content, along with user comments, are always safe.
+
+## Aisha - The Integrative Developer
+
+- **As** a software developer,
+  - **I want** to easily integrate the backup library.
+  - **So that** I can provide backup functionalities in my software without
+    building from scratch.
+
+- **As** a software developer,
+  - **I want** to customize the backup settings using the library
+  - **So that** I can ensure my software's users have flexibility in their
+    backup preferences.