Macharia Nyanjui

Software Engineer, Design Systems enthusiast and an Aviation fanatic!

[Macharia Nyanjui @MasherJames]

@TheNjoroge Though, I kinda get the concern here since these fund managers have been caught in a web of running ponzi schemes and insider trading. They definitely need to be scrutinized since they have grown like crazy! @CMAKenya needs to do it's job here!

[Macharia Nyanjui @MasherJames]

@TheNjoroge Hedge funds are making way crazier returns than Mansa X. I presume they exist to beat the market, what S&P 500 would give, which is considered as a proxy to the market. For instance, if you just bought Micron at the beginning of the year, you'd have made 245% in returns todate.

[WWE @WWE]

.@ArcherOfInfamy and @RonKillings want to battle The War Raiders for ALL the marbles! 😎

[WWE @WWE]

"I NEED to beat you" 🤯

@WWERomanReigns has ACCEPTED @WWERollins challenge for SummerSlam!!

🎟️: https://t.co/NCo5yBBF5n

[WWE @WWE]

"A lot of folks said I would NEVER win the WWE Championship"

You proved them ALL wrong, @samizayn! 🙌

[Macharia Nyanjui @MasherJames]

@WWE Congratulations @SamiZayn

[WWE @WWE]

WHAT A MOMENT FOR SAMI ZAYN!!! 🥹

[WWE @WWE]

#ANDNEW 🏆

SAMI ZAYN IS UNDISPUTED WWE CHAMPION!!!!

A DREAM REALIZED!!!!

[Macharia Nyanjui @MasherJames]

@Kenyans MF made someone wake up at 5am to go and record him 😂😂

[𐌁𐌉Ᏽ 𐌕𐌉𐌌𐌉 @OrevaZSN]

This is free advice from an expensive psychologist. If you’re an anxious person, do everything for fun. Go to a job interview for fun. Submit documents for fun. Start a blog for fun. Anxiety feeds on importance. Don’t make everything a matter of life and death.

[WWE @WWE]

Oba Femi is truly larger than life. 😳

@Obaofwwe

[WWE @WWE]

This was TOUGH. 😤

@Obaofwwe

[WWE @WWE]

Acknowledgment Day is @WWERomanReigns FAVORITE Day! ☝️

[WWE @WWE]

Jacob Fatu has ACKNOWLEDGED @WWERomanReigns!!! ☝️

The Bloodline grows STRONGER!

[Wrestling Pics & Clips @WrestleClips]

When was the last time WWE built someone as an undestructable beast?

This is INSANE.

#WWEClash

[Muriaso @muriaso]

Time to replay this clip

[GREG ISENBERG @gregisenberg]

I just got back from SF and I FEEL INSPIRED.

I spent 5 days with frontier AI model teams, AI startup founders, and 3 billionaires.

My takeaways:

1. I had lunch with 3 billionaires. All of them are buying SaaS companies and rebuilding them agent-first. They were deeply inspired by Bending Spoons and Ryan Cohen's eBay deal. Buy the company, cut the headcount, rebuild the tech, add agents, add features, make more valuable experience, raise prices.

2. The frontier model companies are hungry for usage data from the field. They can see API calls and token counts. They can't see the actual workflows. If you're deep in a niche using these models in ways the model companies haven't seen, that understanding is incredibly valuable. Usage intelligence is the new alpha.

3. Consumer AI is massively underbuilt. Every billboard in SF is either B2B inference infrastructure or vertical agent companies. The entire city is optimized for enterprise. Meanwhile you have companies like Cal AI doing $50M ARR in 18 months as a consumer app. I met with a cool few teams doing consumer AI (@paulscherer / @ekuyda)

4. MCP came up in literally every conversation. The companies exposing their product as MCP endpoints are getting pulled into deals they never pitched for. The ones that aren't are becoming invisible to agents. This is the new SEO. If agents can't find you, you don't exist. Building products for agents is the new zeitgeist in general.

5. Not uncommon for hot seed rounds to be $25-50 million valuations. I saw a Series A at $450 million

6. If I had a dollar every time someone mentioned "forward-deployed engineer" this trip I could have funded a seed round. It's the hottest role in SF right now. The person who sits between the agent and the customer, making sure everything actually works.

7. The mood around open source shifted. A year ago it felt like open source was chasing the frontier models. Now founders are telling me Gemma and DeepSeek are good enough for 80% of what they need at a fraction of the cost. The "which model do you use" conversation is being replaced by "which model for which task." Model loyalty kinda feels dead.

8. Voice agents came up more than I expected. Multiple founders told me voice is the interface for the next billion users. The billion people who will never type a prompt will absolutely talk to one.

9. The Obsidian community in SF is weirdly intense. Multiple founders showed me their vaults unprompted. Like showing someone your home gym. It's a flex now. The quality of your knowledge base (second brain?) is becoming a status symbol among builders.

10. Maybe it was just the people I met but the age of the founders is shifting. I met more founders over 40 this trip than any trip before and more founders under age 21 than ever before. Founders getting older and younger at the same time.

11. I spoke to a lot of fast-growing startups, VCs and frontier models who are hiring content creators right now.

12. The restaurant scene in SF is actually better than it's been in years. Founders are going out more. Alcohol is out, not surprisingly.

13. SF doesn't feel like the only place anymore. We all have access to the same frontier models. We all read the same X feed. A founder in NYC or Lagos is calling the same APIs as a founder in SoMa. So in the past it felt like SF was always lightyears ahead, doesn't feel that way anymore. It's okay not to live in SF and have BIG DREAMS.

14. The coworking spaces in SF are half empty but the coffee shops are packed. People want to be around people. I had a few startup ideas here....

15. Walking around the Mission I noticed something: the street-level businesses, the taquerias, the barbershops, the laundromats, none of them use any AI at all.

16. I heard the phrase "agent debt" for the first time. Like technical debt but for agents. When you hack together an agent workflow fast and never clean it up, the system prompts conflict, the memory gets polluted, the tools overlap. 6 months later the agent is doing weird things and nobody knows why lol.

17. Met a few people who carry two phones now. One for personal. One that's basically an agent terminal running Telegram or iMessage connections to their agent fleet.

It's always amazing to get that dose of inspiration in SF. I FEEL INSPIRED.

But I'm so happy to be back home, locked in and building.

We're 12-18 months into a shift that will take 15 years to play out. The urgency in every conversation was real.

What an incredible time to be building.

[Macharia Nyanjui @MasherJames]

@dc_mma I think they should. But commit a collateral matching the value of the bet.

[Dmitrii Kovanikov @ChShersh]

For my non-tech friends, this is like Ronaldo joining Manchester City

[MEST Africa @MESTAfrica]

Applications for the MEST AI Startup Program are now open.

Our flagship, fully-funded 12-month program is designed for ambitious founders across West and East Africa ready to build with those shaping what’s next.

What to expect:

7 months of hands-on AI training and product development
Up to 4 months of guided incubation
Potential access to seed funding

If you are between 21–35, passionate about problem-solving, and ready to build solutions that can scale beyond Africa, this is your opportunity.

Apply now : https://t.co/pBKtyC1Tt8