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Discover Eye-Friendly E Ink Tablets for Education with Geniatech
Dear info，
Are you seeking an eye-friendly solution for your educational environment? Geniatech’s E Ink tablets offer a paper-like writing and reading experience, with long-lasting battery life designed to protect students’ and teachers’ eyes during extended use.
Why Choose Geniatech?
・Source Factory: Competitive pricing with full production control for bulk orders.
・Comprehensive Product Line: Cutting-edge technologies, including the latest Spectra 6 color e-ink.
・In-House R&D: Free engineering support for customized educational solutions.
・One-Stop Customization: OEM/ODM services with an open-source Android system for flexible adaptation.
Let’s discuss how Geniatech’s E Ink tablets can help streamline your educational needs with our advanced technology.
Best regards,
Geniatech Team
by "VANELLY Mochnacz" <mochnaczvanelly40@gmail.com> - 05:55 - 5 Apr 2025 -
Car refrigerator,truck air conditioner,rv air conditioner manufacture from Colku
Hi, infoGood day!This is Evelyn from Colku company,nice to meet you.(Foshan Sanshui Colku Electrical Appliance Ltd. Guangdong,China).We are professional manufacture who focus on mobile refrigeration field with more than 23+ years experience,also a reliable supplier of world-famous automotive products brands, including:
ARB in Australia, Milenco in the UK, TRUMA and REIMO from Germany,Narbonne Accessories from France and so on.
as for certification,we have factory ISO9001 and IATF16949 qualified, products CE, C-Tick,SAA.Our main products including all kinds of car refrigerators,parking air conditioners, RV air conditioners, camping air conditioners,camping refrigerators and customized fridges for new energy vehicle.which are widely used in cars, yachts, truck, outdoor camping and also at home.Our company has 32000 square meters, and total 4 work shop buildings.
Colku was established in 1989,located in Foshan City. And in the past 23 years, Colku has become the top OEM/ODM manufacturer of truck air conditioners and portable refrigerators.
I have sent you our latest products catalogs by attachment,and my business card is as below,kindly check.
Looking for your further feedback.
Best wishesEvelyn Li
Contact
Mail:evelyn@colku.cn
Whatsapp: +86_13246255187
Tel/Wechat:+86_13246255187
Add: NO.84,Area B,Sanshui Central Technology Industry Park,Leping,Sanshui Dist.,Foshan City,Guangdong China,528137
www.colku.com
by "manager001" <manager001@fscolku.com> - 03:19 - 5 Apr 2025 -
The week in charts
The Week in Charts
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by "McKinsey Week in Charts" <publishing@email.mckinsey.com> - 03:08 - 5 Apr 2025 -
Hi, this is Sally Lin from Shantou Yudong packaging
Hi info，
Good day !
【New designs are waiting for you】
This is Sally Lin from Yudong Packaging,a OEM/ODM cosmestics packaging manufacturer in China.We just developed some new designs with new material,would you like to get more information about them?All of our prodcut sare coming with certifications.Would you like to get our newdesigns catalog?Yours Sally Lin
Shantou Yudong Packaging Products Co.,ltd
E-mail : sally@styudong.com
WhatsApp /Wechat: +86-13592884136
Website: www.styudong.com
by "Fatxi Ola" <fatxiola688@gmail.com> - 02:38 - 5 Apr 2025 -
Boost Your Production Efficiency with Our BLDC & AC Motor Solutions
Dear manager,
I'm with Guangdong Zongqi Automation Co.,Ltd, specializing in BLDC and AC motor production equipment. We offer solutions designed to improve production efficiency and quality.
If you’re interested in exploring how we can support your business, please get in touch.
Best regards,
Joyce
ManagerPhone: 0086 17786822866
WhatsApp:+86 18898401103
Email: joyceluo2024@zongqi-auto.cn
Official Website:https://www.zongqiauto.com/
by "Merle Isaac" <mariana83542@gmail.com> - 02:30 - 5 Apr 2025 -
Unlocking value with gen AI
by "McKinsey Highlights" <publishing@email.mckinsey.com> - 11:50 - 5 Apr 2025 -
EP157: How to Learn Backend Development?
EP157: How to Learn Backend Development?
Forwarded this email? Subscribe here for moreWorkOS Radar: Smarter protection with device fingerprinting (Sponsored)
WorkOS Radar leverages advanced device fingerprinting to protect your platform from fraudulent activity, including fake signups, throwaway emails, and brute-force attacks.
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This week’s system design refresher:
Why Everyone’s Talking About MCP? (Youtube video)
How to Learn Backend Development?
A Simplified Git Workflow
Virtualization vs Containerization
How Netflix Built a Distributed Counter?
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Why Everyone’s Talking About MCP?
How to Learn Backend Development?
Backend Development requires knowledge of multiple aspects. Here’s a mind map of what all things a developer should learn:
Fundamentals
This includes topics like backend vs frontend, client-server, DNS, etc.Backend Programming Languages
Choose between one or more programming languages like Java, Python, JS, Go, Rust, and C#.Databases
This includes topics like types of databases such as SQL (Postgres, MySQL, SQLite), NoSQL (MongoDB, Firebase, DynamoDB), NewSQL (CockroachDB, Spanner). Other topics include working with ORMs and Database Caching.APIs and Web Services
Learn about API types (REST, GraphQL, gRPC, SOAP) and authentication techniques (like JWT, OAuth 2, API keys).Server and Hosting
This involves topics like backend hosting services (AWS, Azure, GCP), Containerization using Docker & Kubernetes, and Server Setup for Nginx, Apache, etc.DevOps
Learn about CI/CD Pipelines using GitHub Actions and Jenkins, IaC (Terraform, Ansible) and Monitoring with tools like Prometheus, Grafana, ELK.
Over to you: What else will you add to the list for learning backend development?
A Simplified Git Workflow
Learning Git is one of the fundamental skills for every developer out there. Here are the steps within a simple and basic Git workflow.
Developer’s Working Directory (Untracked) to Staging Area (Index)
The command for the same is “git add”. The files go from untracked to staged.Staging Area to Local Repository (Head)
The command for this move is “git commit -m “message””. It saves changes to the local repository (HEAD), marking a version history.Local Repository to Remote Repository (Remote)
The command for this move is “git push”. It uploads the committed changes to the remote repository (such as on GitHub) for collaboration.Remote Repository to Local Repository
The commands “git pull” and “git fetch” help with this. “git pull” updates local files with remote changes. On the other hand, “git fetch” retrieves remote changes but does not merge them. The command “git merge” combines changes from different branches.Checking the Differences
The command “git diff HEAD” shows the differences between the developer's working directory and the latest commit.
Over to you: Which other step do you follow in your Git workflow?
Virtualization vs Containerization
Virtualization creates multiple VMs on a single physical server, each with its operating system, using a hypervisor.
Containerization is a lightweight virtualization method that runs applications in isolated environments (containers) sharing the same operating system.
Let’s look at the different possibilities in more detail.Bare Metal: Applications run directly on the operating system. No virtualization or containerization is used. It provides high performance but lacks flexibility.
Virtualized: Uses a hypervisor to create VMs. Each VM has its guest OS, making it heavier on resources. Provides strong isolation but adds overhead.
Containerized: Uses a container engine instead of a hypervisor. Containers share the host operating system, making them lightweight and efficient. It is faster and more scalable than VMs.
Containerized on Virtualized: Runs containers inside VMs. Provides both flexibility and isolation, common in hybrid cloud environments. It balances resource efficiency with security.
Over to you: Have you used VMs and Containers to deploy workloads?
How Netflix Built a Distributed Counter?
A Distributed Counter is a system where the responsibility of counting events is spread across multiple servers or nodes in a network. Netflix needs to track and measure multiple user interactions to make real-time decisions and optimize its infrastructure.
For this reason, they built a Distributed Counter Abstraction.
Netflix’s Distributed Counter Abstraction operates in four main layers, ensuring high performance, scalability, and eventual consistency.
Client API Layer
Users interact with the system by sending AddCount, GetCount, or ClearCount requests. The Netflix Data Gateway efficiently processes and routes these requests.Event Logging and TimeSeries Storage
Events are stored in Netflix TimeSeries Abstraction for scalability. Each event is tagged with an Event ID to ensure idempotency. To avoid database contention, events are grouped into time partitions known as buckets. Data is stored in Cassandra.Rollup Pipeline or Aggregation
Rollup Queues collect event changes and process them in batches. Aggregation occurs in immutable time windows, ensuring accurate rollup calculations. Data is stored in the Cassandra Rollup Store for eventual consistency.Read Optimization (Cache & Query Handling)
Aggregated counter values are cached in EVCache for ultra-fast reads. If a cache value is stale, a background rollup refresh updates it. This model allows Netflix to process 75K requests per second with single-digit millisecond latency.
Reference: Netflix’s Distributed Counter Abstraction
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by "ByteByteGo" <bytebytego@substack.com> - 11:36 - 5 Apr 2025 -
Response: Inquiry About Products
Dear [openbravo and Odoo Systems],Thank you for your interest in our products.We received an email from an address with your company's name requesting the company brochure. Before proceeding with sending the brochure, we would like to confirm whether this email is indeed from your company. Kindly confirm this at your earliest convenience.If the email is confirmed to be from your company, please note that the brochure is attached to this message. If you have any other questions or need further information, feel free to reach out.We look forward to working with you!
Yours Sincerely,
Egypt Mineral Ores [E.M.O.] - Information Department46, Moharam Bek St. – Moharam Bek – Alexandria Governorate Mobile: +2015-5744-1470
ElMaram Tower 1St, Floor - Office # 12 Telephone: +203-497-2978
Postal Code / ZIP Code #21511 Fax: +203-497-2978
https://www.emomineral.com E-mail: export@emomineral.com E-mail: info@emomineral.com
by "info@emomineral.com" <info@emomineral.com> - 05:43 - 5 Apr 2025 -
Limited Availability: Secure Your Financial Plan & VIP Golf Access
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At Fairway Wealth Partners, we pride ourselves on personalised, high-quality service. To maintain this level of care, we limit the number of clients we serve at any one time - ensuring immediate access to:
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Spaces are limited, and we’d love for you to be among our select clients. If you’re interested, now is the time to act.
Click here or reply to this email to book your spot. Don’t miss out on a world-class blend of financial expertise and golfing prestige.
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by "Richard - Fairway Wealth Partners" <info@fairwaywealthpartners.com> - 03:17 - 5 Apr 2025 -
Enhance Operational Efficiency with Shen Gong’s Certified Industrial Knives
Dear info,
I am Lmar Kiitty from Sichuan Shen Gong Carbide Knives Co., Ltd., the world’s largest manufacturer of carbide knives and blades since 1998. With ISO9001 certification and a track record as a trusted OEM partner, we provide a diverse range of high-performance industrial knives designed to improve operational efficiency.
Our product offerings include:
· Corrugated Slitter Scorer Knives
· Coil Slitting Knives, Razor Blades, Guillotine Knives
· Pelletizing and Granulator Knives
· Custom Solutions for Precision Cutting Needs
Shen Gong combines carbide material technology with manufacturing expertise to deliver durable, high-quality products that reduce maintenance and enhance productivity. Please let us know if you’d like more information or a customized solution tailored to your needs.
Warm Regards,
Lmar Kiitty
Overseas Sales Manager
Sichuan Shen Gong Carbide Knives Co., Ltd.
by "Lmar Kiitty" <kiittylmar709@gmail.com> - 05:38 - 4 Apr 2025 -
Collaborate with a Leading Industrial PC Manufacturer in China
Dear info,
My name is Robin Chen, and I am reaching out from APQ, a leading industrial PC manufacturer in China.
Ranked among the top three in our industry, we pride ourselves on our strong R&D capabilities, robust production systems, and effective sales channels.
We are currently looking to build partnerships with valued companies aboard. On our website: www.apuqi.net, you will find our company introduction and product catalog for your consideration.
Please feel free to reach out if you would like to explore opportunities to work together.
Best Regards!
Robin Chen
Overseas Operations
MobileCN/WhatsApp：+86 183-5162-8738
Website: www.apuqi.net
by "marketing" <marketing@apqtech.cn> - 03:16 - 4 Apr 2025 -
🚨LAST CHANCE! Will I see you in the masterclass?? 🚨
I know you “say” you’re busy…
But do you have 60 minutes… to change your life forever and finally have an online business that could set you financially free???
If so, you should hop on the live FREE Masterclass I’m hosting with my good friends Paul Counts, Shreya Banerjee.
If you’ve missed my emails up til now…
We’re gonna reveal a BUNCH of ready-to-launch funnels we pre-built for you.
As well as the sales page, upsell flow, email follow ups, everything…
Even the products!
So go save your spot because they are filling up fast, and I’m not sure when we’re going to offer this masterclass again…
We’re gonna walk you step-by-step through taking these funnels, and launching them in less than 15 minutes.
Don’t wait.
Save your spot here:
Russell Brunson
P.S. - Don’t forget, you’re just one funnel away….
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by "Russell | ClickFunnels" <noreply@clickfunnelsnotifications.com> - 02:33 - 4 Apr 2025 -
Make every step more dynamic: our shoe recommendations!
Dear info,
Have a nice day.
This is Andy from China. We got your info from google. We are a trader and manufacturer over 10 years specialized in custom sneaker, slippers, sandals,sport shoes .
As a professional trader, Our team has more than 10 years experience with the market. we have a highly efficient and experienced team to develop up-to-date designs and customized products. As a manufacturer, we can promise our quality and leading time. And we also can give you a competitive price with the quality in your market.
All kind of Our products always have stock, OEM&ODM welcome.
Samples time canbe in 15 days.
We will be happy to give you a quotation upon your requirement. Looking forward to hear from you soon .
ANDY LUO
QUANZHOU HANTUO SHOES CO.,LTD.
EMAIL:andy1@hentoll.com
PHONE/WHATSAPP:+8615106092217
Website: www.hentoll.com
by "sales14" <sales14@hentol1314.com> - 01:42 - 4 Apr 2025 -
Wealth requires health
The Shortlist
Share this email
Curated by Alex Panas, global leader of industries, & Axel Karlsson, global leader of functional practices and growth platforms
Welcome to the CEO Shortlist, a biweekly newsletter of our best ideas for the C-suite. This week, we examine what health means for CEOs and their employees. You can reach us with thoughts, ideas, and health tips at Alex_Panas@McKinsey.com and Axel_Karlsson@McKinsey.com. Thank you, as ever.
—Alex and Axel
Healthy leaders. Most CEOs got to where they are through a focused approach to hard work. But our latest research shows that personal health is more important than long hours. We asked more than 100 leaders of companies around the world about the daily routines that keep them effective in their roles. Six categories of mindsets and practices emerged. Staying healthy on these six dimensions is a prerequisite for high performance.
Healthy employees. Employee health means much more than physical safety in the workplace, says Lucy Pérez, McKinsey senior partner and global leader of the McKinsey Health Institute. Holistic health means mental, social, and emotional well-being. And, as with all kinds of health, prevention is key. Learn how to advocate for your employees—and yourself—in our latest article.
We hope you find these ideas novel and insightful. See you in a couple weeks with more McKinsey ideas for the CEO and others in the C-suite.Share these insights
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You received this email because you subscribed to The CEO Shortlist newsletter.
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by "McKinsey CEO Shortlist" <publishing@email.mckinsey.com> - 04:44 - 4 Apr 2025 -
Economic mobility in rural America: A first look at new research
On McKinsey Perspectives
Brought to you by Alex Panas, global leader of industries, & Axel Karlsson, global leader of functional practices and growth platforms
Welcome to the latest edition of Only McKinsey Perspectives. We hope you find our insights useful. Let us know what you think at Alex_Panas@McKinsey.com and Axel_Karlsson@McKinsey.com.
—Alex and Axel
•
Economic growth engine. That rural America is facing an inevitable decline is more myth than reality. In fact, the areas outside of urban centers are growing, and rural American communities are important contributors to the broader US economy, McKinsey Senior Partner Shelley Stewart III and coauthors explain. McKinsey Institute for Economic Mobility analysis found that from 2010 to 2022, the GDP in rural counties increased 15% and median household income rose 43% to reach nearly $60,000 a year—a historic record.
—Edited by Belinda Yu, editor, Atlanta
This email contains information about McKinsey's research, insights, services, or events. By opening our emails or clicking on links, you agree to our use of cookies and web tracking technology. For more information on how we use and protect your information, please review our privacy policy.
You received this email because you subscribed to the Only McKinsey Perspectives newsletter, formerly known as Only McKinsey.
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by "Only McKinsey Perspectives" <publishing@email.mckinsey.com> - 11:05 - 3 Apr 2025 -
Reliable Cable Ties and Seals for Your Projects
Dear info,
I am reaching out to introduce our company, a trusted supplier of consumer electronics. We specialize in Type-C, HDMI, and USB cables, providing top-tier connectivity solutions for various devices.
In addition to cables, we offer mobile phone cases, headphones, and DP and AV cables. Each product is crafted for superior quality, ensuring long-lasting use and user satisfaction.
We would love the opportunity to work with you and discuss how our products can fit your needs. Please feel free to reach out for further details.
Best regards,
Wenzhou Accory Security Seals CO., Ltd
Whatsapp: +8613588958250
by "Asab Xyd" <xydasab@gmail.com> - 05:02 - 3 Apr 2025 -
Wholesale eyewear catalog"save you 30%-50% procurement cost“
China MIDOEYEWAER Glasses Factory Direct Sales - Frames wholesale price is cheaper than purchasing in your country
"Save you 30%-50% of purchasing costs"
1. Support small batch orders mixed wholesale and sample delivery
2. 5-7 days international express UPS DHL to your country, relieve your inventory pressure
2025 new glasses frame wholesale catalog for quotation referenceEyeglass Frames Wholesale Catalog Starting from $5 
Sunglasses Wholesale Catalog from $5 
Why Choose Us?
1. Save 30-50% on Procurement Costs: As a direct factory seller, we eliminate the middleman, offering you highly competitive prices.
2. Support Small Batch Orders: Whether you are making a large-scale purchase or a small trial order, we can flexibly meet your needs.
3. Wholesale of Over 10,000 In-stock Models: We have a rich inventory covering a variety of styles and materials and can arrange for quick delivery.
3. Wholesale of Over 10,000 In-stock Models: We have a rich inventory covering a variety of styles and materials and can arrange for quick delivery.
4. Support Custom Brand LOGO: We provide OEM/ODM services and can customize brand logos and designs according to your requirements.
5. International Express Delivery within 7-10 Days: We cooperate with several international logistics companies to ensure that the goods are delivered to your country quickly and safely.
• One-stop Solution: From design, production to logistics, we provide full-process services, making your procurement more worry-free.
• Quick Response: Our professional team provides 24/7 service to ensure that your needs are addressed promptly.
Our Services and Advantages:
• Direct Factory Sales: Without middlemen, our prices are more competitive.
• Flexible Payment Methods: We support various payment methods such as T/T, letter of credit, and PayPal, which are convenient and fast.
• High Quality Assurance: All products are made of high-quality materials (such as titanium and acetate fiber) and comply with international quality standards (such as CE and FDA certifications).
Simple and Efficient Import Process:
1. Select Products: Choose from our more than 10,000 styles or provide us with your design requirements.
2. Confirm the Order: We provide a detailed quotation and sample confirmation.
3. Production and Quality Inspection: Efficient production and strict quality inspection to ensure product quality.
4. Logistics and Delivery: Through international express delivery or sea freight.
CUSTOM LOGO
4043 Jinhao Business Building, No. 146 tang'an Road, Tianhe District, Guangzhou, China
- Whats App: +8619570007585
- Write us:huangmichelle7333@gmail.com
QUOTE 
CONTACT
US
by "Eugene Pauline" <paulineeugene97@gmail.com> - 01:23 - 3 Apr 2025 -
Your “pre-built” path to income and lifestyle
When you get your driver’s license, you go buy a car, right?
…One you like, and can afford.
Is it the best, fastest, most high-end, luxurious car you can get? Probably not.
But it gets you to where you need to go. Consistently and reliably.
And the best part is, it’s already bolted together by professionals.
No need to build it yourself!
So here’s a question…
Why not do the same thing when you’re starting your online business?
I explain everything in my FREE “52 Funnels” masterclass… AND I give you the funnels!
Why make it harder on yourself by building everything from scratch?
Like I said – these funnels are truly DONE for you.
The sales page, upsell flow, email follow ups, everything…
Heck, even the products are done for you!
All you need to do is change out your payment link, and you can launch the funnel.
Plus, you can keep ALL the profit – you don’t owe us a dime. 🙂
So don’t make all of this harder on yourself.
Save your spot for our FREE “52 Funnels” Masterclass…
Where we’ll show you exactly how to take these pre-built funnels, launch them in less than 15 minutes each…
And start bringing in sales within MINUTES!
Go save your spot here, right now:
Russell Brunson
P.S. - Don’t forget, you’re just one funnel away….
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If you purchase anything through a link in this email, you should assume that we have an affiliate relationship with the company providing the product or service that you purchase, and that we will be paid in some way. We recommend that you do your own independent research before purchasing anything.
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by "Russell | ClickFunnels" <noreply@clickfunnelsnotifications.com> - 01:13 - 3 Apr 2025 -
The Art of REST API Design: Idempotency, Pagination, and Security
The Art of REST API Design: Idempotency, Pagination, and Security
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APIs are the front doors to most systems.
They expose functionality, enable integrations, and define how teams, services, and users interact. But while it’s easy to get an API working, it’s much harder to design one that survives change, handles failure gracefully, and remains a joy to work with six months later.
Poorly designed APIs don’t just annoy consumers. They slow teams down, leak data, cause outages, and break integrations. One inconsistent response structure can turn into dozens of custom client parsers. One missing idempotency check can result in duplicate charges. One weak authorization path can cause a security breach.
Well-designed APIs, on the other hand, create leverage and help the team do more. Some defining features are as follows:
They act as contracts, not just access points.
They scale with usage.
They reduce surprises for the developers and other stakeholders.
And they are reliable, internally and externally.
Most of the pain in API systems doesn’t come from the initial development. It comes from evolving them: adding new fields without breaking old clients, handling retries without state duplication, and syncing data between systems without losing events.
A good API design is defensive and anticipates growth, chances of misuse, and failures. It understands that integration points are long-lived and every decision has an impact down the line.
In this article, we explore the core principles and techniques of good API Design that make APIs dependable, usable, and secure. While our focus will primarily be on REST APIs, we will also explore some concepts related to gRPC APIs to have a slightly more holistic view.
Principles of Good API Design...
Continue reading this post for free in the Substack app
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by "ByteByteGo" <bytebytego@substack.com> - 11:35 - 3 Apr 2025
