I Built an App to Fix My Relationship with Coffee & Sleep

It’s 10:30 PM on a late flight out of Frankfurt. My eyes are wide open, staring at the dark cabin ceiling. The culprit? The double espresso that had felt so crucial just a few hours ago. Coffee has betrayed me again. This constant struggle between enjoying coffee and reclaiming my sleep is exactly why I built Mindful Coffee.

It’s 10:30 PM, and I’m on a late flight out of Frankfurt. My eyes are wide open, staring at the dark cabin ceiling. The culprit? The double espresso that had felt so crucial just a few hours ago. Coffee has betrayed me again.

Sound familiar? If you’re like me, coffee is essential—not just a morning ritual, but a productivity booster, a creative muse, and yes, a simple pleasure. But there’s a flip side: sleepless nights, jittery afternoons, and a constant guessing game: “Did I have one espresso too many?”

I decided enough was enough. I didn’t want to give up coffee; I wanted clarity. How could I keep the joy of coffee without paying the nightly price?

Enter Mindful Coffee

This frustration sparked a personal project. As a technologist, data scientist, and coffee enthusiast, I started asking myself: what if there was a way to scientifically manage caffeine intake?

That’s how Mindful Coffee was born—an iOS app designed to remove caffeine guesswork, enabling mindful enjoyment of your coffee without compromising your sleep.

Who will benefit from this app?

  • Coffee Lovers who want to enjoy their favorite drink without sleepless nights.
  • Productivity Seekers aiming to optimize their energy and focus.
  • Health-Conscious Individuals interested in understanding how their diet affects their body and sleep.

Clarity Instead of Guesswork: The Core Features

Mindful Coffee lets you effortlessly log your caffeinated drinks and immediately gives you an estimate of when you’ll be ready for sleep. It eliminates the mental math (“Did that cappuccino push bedtime past midnight?”) and replaces it with clarity, simplicity, and confidence.

I’ve also included a „What-If“ feature—your caffeine crystal ball. Wondering about another latte at 4 PM? Mindful Coffee shows exactly how it’ll affect your bedtime tonight.

The main dashboard of the Mindful Coffee iOS app. The screen displays three main circular progress indicators against a light green background. The first, labeled "Caffeine in body," shows a value of 77 mg. The second, labeled "Total caffeine today," shows a value of 189 mg. The third, labeled "Ready for sleep," shows a time of 0:24 (Tomorrow), indicating the user will be ready for sleep in 24 minutes after midnight.
A screenshot of the Mindful Coffee app dashboard showing caffeine levels in the body, total caffeine consumed today, and the predicted time until ready for sleep.

Go Deeper with Mindful Coffee Pro

Recognizing every body is unique, Mindful Coffee doesn’t offer just one-size-fits-all guidance. With the Pro subscription, you get deep, personalized insights:

  • Personalized Metabolism Assistant: Understand precisely how your body processes caffeine.
  • Personalized Sleep Analysis: Syncs seamlessly with HealthKit to correlate your caffeine intake and real sleep data.

This means less guesswork and more targeted insight to maximize both your coffee enjoyment and restful nights.

An Invitation to You

I built Mindful Coffee first for myself, but soon realized countless coffee lovers and productivity seekers face the same struggles.

I’d love for you to try Mindful Coffee, see how it enhances your relationship with caffeine, and let me know your thoughts!

As a special thank you for joining me on this journey, I’m offering you one month of Mindful Coffee Pro entirely free:

👉 Click here to redeem your FREE month of Mindful Coffee Pro

Let’s Connect

Follow along on Instagram (@mindfulcoffeeapp) and X (@MindfulCofApp) for tips, insights, and behind-the-scenes moments.

Together, let’s reclaim our sleep without sacrificing the joy of coffee.

Cheers to mindful drinking!

— Alexander

AI Won’t Replace Fundraisers. It Will Make Them Super-Fundraisers.

AI is not a magic wand for fundraising, but it can be a game-changer. This strategist’s guide shows nonprofit leaders how to move beyond buzzwords and use AI to transform engagement. Learn how intelligent automation can handle routine tasks, freeing your team to focus on building the human relationships that drive your mission.

I regularly speak with leaders of nonprofit organizations across Germany and Europe. The core challenge is almost always the same: how to deepen donor relationships and drive mission impact with teams that are already stretched thin. The administrative burden of fundraising—from research and data entry to personalized outreach—can often overshadow the strategic, human-centric work that truly inspires giving.

This is where Artificial Intelligence, when applied thoughtfully, is becoming a game-changer. It’s not about replacing the human element; it’s about augmenting it. Based on successful AI deployments I’ve seen with NGOs, here are some key strategies to enhance fundraising and engagement.

1. Start with the Problem, Not the Product

The most successful AI adoption begins by embedding solutions into existing workflows. Instead of a massive, disruptive overhaul, focus on a specific bottleneck. For instance, automating donor qualification or personalizing outreach with a tool like M365 Copilot delivers immediate, measurable results and builds momentum for broader change.

2. Turn Raw Data into Relationship Intelligence

AI excels at transforming complex data into actionable fundraising intelligence.

  • Smarter Prioritization: AI models can analyze historical giving data in your CRM to predict future potential, helping your team focus their valuable time on the relationships that matter most.
  • Personalized Campaigns at Scale: By segmenting donor lists with a level of detail that would be impossible manually, AI allows for highly tailored messaging that resonates deeply and boosts engagement.

3. Unify the Entire Donor Journey

Donor outreach, stewardship, and engagement have often lived in separate silos. AI-driven platforms, like Dynamics 365, can unify these functions. This creates a seamless, consistent experience for every donor, ensuring they feel understood and valued at every touchpoint.

4. Empower Your Team with AI

Equipping your fundraising professionals with AI tools makes them more effective, not redundant.

  • Tailored Outreach: AI can help draft personalized messages for each donor, fostering stronger connections.
  • Dynamic Proposals: Imagine generating a proposal that instantly pulls in a donor’s specific interests and past engagement. This is the power of AI-driven content generation.
  • Optimized Timing: AI analytics can even suggest the ideal time to reach out, improving response rates. The recent work Malteser in Germany has done with Copilot is a fantastic real-world example of this principle in action.

5. Master the Art of the „Prompt“

Getting the best out of generative AI depends on the quality of your instructions, or „prompts.“ This is a new, crucial skill.

  • Instead of asking: „Summarize this donor.“
  • Try a strategic prompt: „Act as a fundraising strategist. Based on this donor’s profile from our CRM, summarize their giving history, highlight their stated interest in our youth programs, and suggest three talking points for a renewal conversation.“ This focused approach unlocks far more powerful and useful results.

The Future is Collaborative

The future of fundraising isn’t a choice between humans or AI; it’s a powerful symbiosis. By letting AI handle the routine and complex data analysis, fundraisers are freed to focus on what they do best: building authentic relationships, crafting compelling stories, and thinking strategically about the mission.

Strategic AI adoption is a transformative lever for accelerating fundraising, deepening donor relationships, and, ultimately, amplifying social impact.

I’m interested to hear your perspective: What is the single biggest administrative task you wish AI could take off your team’s plate?

Beyond the Buzz: Unlock Better Sleep and Energy with Smart Caffeine Tracking

Mindful Coffee main screen showing current caffeine level and logging options

Track your current estimated caffeine level

Many of us rely on caffeine to kickstart our mornings or push through an afternoon slump. Coffee, tea, energy drinks – they’re staples in modern life. But have you ever stopped to think about how much caffeine you’re actually consuming and how it specifically impacts your body? That groggy feeling, the unexpected energy crash, or the trouble falling asleep might be more connected to your caffeine habits than you realize. This is where caffeine tracking comes in.

Why Bother with Caffeine Tracking?

Mindful Coffee main screen showing current caffeine level and logging options
Track your current estimated caffeine level and quickly log new drinks.

It might sound like another thing to monitor, but understanding your caffeine intake offers significant benefits:

  1. Uncover Your Sensitivity: We all metabolize caffeine differently. What gives one person a gentle lift might leave another feeling jittery or wired for hours. Consistent caffeine tracking helps you pinpoint your personal tolerance and sensitivity.
  2. Avoid Energy Crashes: By seeing how much caffeine you consume and when, you can start correlating it with those dreaded energy dips later in the day. This knowledge helps you time your intake more effectively.
  3. Improve Sleep Quality: This is a big one. Caffeine has a well-known half-life (the time it takes for your body to eliminate half of it), but this varies. Tracking helps you understand your „caffeine curfew“ – the time you should stop consuming caffeine to avoid interfering with falling asleep and staying asleep.
  4. Manage Intake Limits: Health guidelines often suggest daily caffeine limits (e.g., around 400mg). Tracking helps you stay mindful of these recommendations and avoid potential side effects of overconsumption.

Introducing Mindful Coffee: Your Smart Caffeine Tracking Companion

Mindful Coffee screen for adding a new consumption entry
Effortlessly add new drinks, adjust dosage, and set the time.

Understanding the benefits of caffeine tracking is one thing; doing it easily and effectively is another. That’s exactly why I developed Mindful Coffee, an iOS app designed to make tracking your caffeine intake simple, insightful, and personalized.

Mindful Coffee isn’t just about logging cups; it’s about providing actionable insights based on your data and your body’s estimated response.

Here’s how it helps:

  • Effortless Logging: Quickly add drinks from a customizable list (now with plenty of pre-added options!) or add your own. Adjust dosage and time with ease.
  • Intelligent Sleep Prediction: Based on your logged intake and personalized metabolism settings (half-life, decay model), Mindful Coffee estimates when your caffeine levels should be low enough for restful sleep. Plan your last coffee accordingly!
  • „What-If“ Scenarios: Wondering if that 3 PM espresso is a good idea? The app can instantly show you how a potential drink might shift your predicted sleep time before you take a sip.
  • Personalized Metabolism: No two people are the same. Choose decay models (Standard Exponential, Linear), adjust your caffeine half-life, set your sleep threshold, and more to tailor the calculations to you.
  • HealthKit Integration: Seamlessly write your caffeine logs to Apple Health and import your sleep data to see real correlations.
  • Data Management: Easily Import or Export your entire consumption history as a CSV file for backup or further analysis.

Good-to-Know Caffeine Facts

Mindful Coffee screen showing caffeine and sleep correlation analysis in dark mode
Visualize how your caffeine intake correlates with your sleep patterns (Dark Mode).

Beyond tracking, keep these general points in mind:

  • Half-Life Varies: While often cited around 5-6 hours, caffeine half-life can range significantly (2-10+ hours) based on genetics, liver function, medication, pregnancy, and other factors. Tracking helps you estimate your effective half-life.
  • Timing is Key: Consuming caffeine later in the day has a much higher chance of disrupting sleep, even if you don’t feel „wired.“ Our sleep prediction feature aims to help with this.
  • Hydration Matters: Caffeine is a mild diuretic. Remember to stay hydrated, especially if you consume multiple caffeinated beverages.
  • It’s Not Just Coffee: Remember sources like tea (black, green, matcha), cola, energy drinks, chocolate, and even some medications contain caffeine. Mindful Coffee helps you track them all.

Take Control of Your Caffeine

Ready to move beyond guesswork and understand how caffeine truly affects your day and night? Caffeine tracking with a tool like Mindful Coffee can provide the clarity you need.

Download Mindful Coffee today and start your journey towards better energy management and more restful sleep!

👉 Get Mindful Coffee on the App Store

Let me know what you think, and feel free to reach out with feedback or feature ideas!

Sleep Better, Without Giving Up Coffee: Introducing Mindful Coffee App!

A lifestyle shot featuring the Mindful Coffee app displayed on an iPhone, placed next to a cappuccino with latte art and scattered coffee beans on a wooden surface. The app screen shows a morning energy level analysis with a smiley face icon and a message indicating „Good morning! Your energy is balanced – great for a productive afternoon.“ The graph on the app illustrates caffeine levels over time. This image showcases how Mindful Coffee integrates into a user’s daily routine, helping them track their caffeine intake for balanced energy and improved mindfulness about their coffee consumption.

Love coffee but hate the jitters and restless nights? You’re not alone! For years, I struggled to balance my caffeine cravings with getting good sleep. That’s why I built Mindful Coffee, and I’m excited to announce it’s finally live on the App Store!

Let me share a bit of the story behind it.

My Journey to Mindful Mornings

Like many of you, coffee has been a constant companion throughout my career, especially during intense periods like writing my first book, ‚Visual Analytics with Tableau‚. But while caffeine fueled my days, I started noticing a pattern: late afternoon coffees often led to restless nights. Lying awake, I wondered, „How much caffeine am I really drinking, and what’s it doing to my sleep?“ That question became the seed for Mindful Coffee.

The „Aha!“ Moment: Understanding the Caffeine-Sleep Connection

It was during one particularly frustrating sleepless night – after yet another delicious Seattle latte in the afternoon – that the ‚aha!‘ moment hit me. I was tired of feeling wired during the day and then exhausted and restless at night. I knew I wasn’t the only one struggling with this caffeine balancing act. „What if,“ I thought, „there was an app that could actually show you, in real-time, how your coffee habits were affecting your sleep?“ That’s how the idea for Mindful Coffee was born: an app to not just track caffeine, but to finally understand its impact.

Introducing Mindful Coffee: Your Personal Caffeine & Sleep Coach

Mindful Coffee isn’t just a tracker – it’s your personal caffeine coach, designed to help you find that perfect balance between enjoying your favorite beverages and getting restful sleep. Here’s how it transforms your daily routine:

  • Effortless Caffeine Logging: Quickly log every sip of coffee, tea, energy drink – anything caffeinated! Our intuitive design makes tracking your intake a breeze, so you spend less time logging and more time living.
  • Understand Your Sleep Impact: Finally see the real connection between your caffeine habits and your sleep quality. Mindful Coffee visualizes your caffeine levels and predicts your optimal sleep time, helping you make informed choices for better rest.
  • Personalized Guidance for Balanced Energy: Mindful Coffee isn’t just a tracker – it’s your personal caffeine coach! Get tailored insights and gentle tips based on your unique caffeine patterns to help you optimize your energy levels without sacrificing sleep.
Mindful Coffee app screenshots: caffeine & sleep analysis, drink logging
Four iPhone screenshots illustrate the Mindful Coffee app’s features for tracking caffeine intake and analyzing its impact on sleep. The screens shown include the caffeine analysis graph displaying energy levels, the drink logging interface with options for customizing caffeine amounts for beverages like espresso and cappuccino, a screen for adjusting caffeine levels and setting drink times, and a summary screen visualizing caffeine and sleep correlation data, categorized by caffeine intake levels such as „Little caffeine“ and „Plenty of caffeine“. Mindful Coffee helps users understand their caffeine habits and improve their sleep quality through data-driven insights.

My Sleep Transformed – And Yours Can Too

Honestly, using Mindful Coffee myself was a revelation. Within days, I wasn’t just tracking caffeine, I was understanding it. I started making small adjustments – skipping that late afternoon espresso, switching to herbal tea – and the impact on my sleep was incredible. I woke up feeling more rested, had more consistent energy throughout the day, and finally felt like I was in control of my caffeine, instead of the other way around. It truly changed my habits, and I’m excited for it to do the same for you.

Ready to sleep better and enjoy your coffee? Download Mindful Coffee today from the App Store and, for a limited time, get 50% OFF as our launch special! Don’t miss out – this offer ends March22nd! Click here to download and start your journey to mindful caffeine consumption!


Mindful Coffee: Join the Conversation!

Happy tracking (and sleeping)!

How do you manage your caffeine intake? We’d love to hear your stories and tips! Leave a comment below, share this post with your coffee-loving friends, or reach out on social media using #MindfulCoffeeApp:

o1: OpenAI’s New AI Model for Complex Problem Solving

An OpenAI interface showcasing the selection of AI models, highlighting the "o1-preview" option with advanced reasoning capabilities. The background features a vibrant yellow and blue gradient, with the text "OpenAI" and "o1" displayed prominently, alongside a dropdown menu showing GPT-4o and o1-mini as other model options. The o1-preview model is marked as selected, emphasizing its enhanced reasoning functions.
OpenAI o1 preview model selection for advanced reasoning capabilities

Artificial Intelligence (AI) has been evolving at an unprecedented pace, and at the forefront of these innovations is OpenAI. Their latest release, the o1 model, represents a significant leap in AI capabilities. Unlike previous iterations that focused on providing fast, surface-level responses, the o1 model takes a different approach by prioritizing reasoning over speed. In essence, it “thinks” through complex problems much like a human would—decomposing tasks, exploring multiple strategies, and even revising its own mistakes. This level of nuanced problem-solving is unprecedented and opens new doors for AI applications.

How o1 Works: A New Approach to AI Problem-Solving

At its core, the o1 model utilizes chain-of-thought reasoning (COT), a method that breaks down intricate problems into smaller, more manageable components. This allows the AI to work through each part systematically, considering various approaches before arriving at a final conclusion. It’s akin to how an expert human might tackle a difficult problem—taking time to understand the challenge from multiple angles, evaluating different strategies, and correcting any errors along the way.

This capability is especially valuable in fields like mathematics, where precision is key. During the recent International Mathematics Olympiad, o1 solved 83% of tasks, a staggering achievement compared to GPT-4o’s 13%. This demonstrates the model’s superior ability to handle highly complex scenarios that require deep, methodical thinking.

What Makes o1 Different from Previous AI Models

While previous models like GPT-4 excelled in speed and generating rapid responses, they often struggled with tasks that required sustained reasoning or the ability to self-correct. The o1 model stands out by introducing a new paradigm in AI—one that emphasizes deliberation and critical thinking. This is not just about handling complex math problems; it applies to various fields, including scientific research, engineering, and software development.

What makes this especially exciting is the model’s ability to analyze its own thought process. Where earlier models would present the first plausible solution they found, o1 takes the time to evaluate multiple options. For example, in a software engineering task, o1 might propose several coding solutions, assess their efficiency, and choose the best one, saving developers significant time by reducing trial-and-error.

The Trade-off: Speed vs. Accuracy

One of the key differences between o1 and its predecessors is the trade-off between speed and accuracy. Previous models prioritized delivering fast responses, which was ideal for tasks like customer service or general information retrieval. However, this often came at the expense of deeper understanding and accuracy, particularly in domains requiring detailed analysis.

With o1, OpenAI has decided to sacrifice some of that speed in favor of accuracy. The model takes longer to generate responses, but the outcomes are more thoughtful and reliable. In high-stakes industries like finance, healthcare, and cybersecurity, where precision matters more than speed, this shift could make o1 the go-to model for tasks that demand careful consideration.

Enhancing AI Safety: A Step Towards Responsible AI

Beyond improving performance, OpenAI has made significant strides in ensuring that the o1 model operates more transparently and safely. One of the standout features of o1 is its ability to offer a transparent thought process. Unlike earlier models, which often presented answers as black boxes, o1 reveals the steps it took to arrive at its conclusions. This is crucial in industries like chemicals, biology, and nuclear research, where any miscalculation can have severe consequences.

The model’s deliberate reasoning process also helps reduce the risk of AI hallucinations, instances where the AI fabricates incorrect yet plausible information. While no model is entirely immune to such issues, the way o1 is designed makes it better equipped to catch and correct errors before presenting an answer. This step-by-step approach allows for more trustworthy AI systems, particularly when used in sensitive fields that require high levels of scrutiny and accountability.

Real-World Applications: From Science to Software

The implications of the o1 model extend far beyond mathematics and theoretical problem-solving. This new approach to AI can be transformative across a wide range of industries. In software development, for instance, developers could use o1 to not only generate code but to troubleshoot and optimize it. The model’s ability to evaluate different solutions means that software engineers can rely on AI for more sophisticated tasks, such as debugging or performance tuning.

In scientific research, o1’s advanced reasoning capabilities could help accelerate discoveries by analyzing large datasets, identifying patterns, and suggesting hypotheses that scientists might not have considered. Its ability to think critically and self-correct could significantly reduce the time researchers spend on trial and error, leading to breakthroughs in fields like genomics, drug discovery, and climate science.

For business leaders, the o1 model promises to revolutionize how AI is integrated into workflows. Unlike earlier models that excelled at automating routine tasks, o1 can be used for strategic decision-making, helping executives analyze market trends, assess risks, and even simulate different business scenarios. This shift from automation to augmentation—where AI assists human decision-making rather than replacing it—could lead to more informed, data-driven strategies.

Limitations and Future Directions

As promising as o1 is, it’s important to recognize that the model is still in its early stages. Currently, it lacks the ability to access the web or process uploaded files and images. These limitations make it less versatile than some might hope, particularly in domains that require real-time information retrieval or multimedia analysis. Additionally, o1’s slower response times may not be ideal for all use cases, especially those that demand rapid answers.

That said, OpenAI is committed to continuously refining the o1 model. Future iterations will likely address these shortcomings by incorporating more advanced features, such as web access and faster processing times. As the model evolves, we can expect to see it become an even more powerful tool for AI-driven innovation across industries.

Conclusion: A New Era for AI with o1

OpenAI’s o1 model marks a significant shift in the world of artificial intelligence. By prioritizing deliberation over speed and enabling transparent, step-by-step reasoning, o1 opens the door to more sophisticated and reliable AI applications. From solving complex scientific problems to enhancing business decision-making, the potential uses for o1 are vast and far-reaching.

As businesses continue to explore how AI can drive innovation and efficiency, the introduction of models like o1 represents a critical milestone. It’s not just about doing things faster anymore—it’s about doing them better. And with o1, OpenAI has set a new standard for what’s possible with artificial intelligence.

To stay updated on the latest advancements in AI and how they are shaping the future of industries, feel free to follow me on LinkedIn or connect with me on X/Twitter for ongoing insights and discussions.

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