matt
@matth217.bsky.social
Startups and software
Midwestern transplant to Bay Area and sometimes Tokyo
https://github.com/matthelmer
Currently building:
https://japanfinsight.com
Midwestern transplant to Bay Area and sometimes Tokyo
https://github.com/matthelmer
Currently building:
https://japanfinsight.com
I'm trying to shop for a shirt online and it's like the models are stupidly handsome, I know they're trying to trick me into thinking I'll look like that. Not gonna work.
September 24, 2026 at 6:36 PM
I'm trying to shop for a shirt online and it's like the models are stupidly handsome, I know they're trying to trick me into thinking I'll look like that. Not gonna work.
This is what one can get for ~$48k USD in the mountains near Kyoto. Strings are attached, probably, but whatever.
app.mokomoko.com/property/989...
app.mokomoko.com/property/989...
¥7.3M | 10DK home in Kyoto built in 1965 | Mokomoko with 115㎡ of building area
This two-story wooden house, approximately 58 years old, was built in 1965 and is suitable as a weekend second home or for those considering relocating.…
app.mokomoko.com
September 11, 2026 at 11:06 PM
This is what one can get for ~$48k USD in the mountains near Kyoto. Strings are attached, probably, but whatever.
app.mokomoko.com/property/989...
app.mokomoko.com/property/989...
Millennials everywhere, rejoice!
boardsofcanada.com
boardsofcanada.com
BOARDS OF CANADA
INFERNO. 29 MAY.
boardsofcanada.com
April 23, 2026 at 3:57 AM
Millennials everywhere, rejoice!
boardsofcanada.com
boardsofcanada.com
should be illegal for senior citizens to own printers. too advanced tech.
April 15, 2026 at 3:12 AM
should be illegal for senior citizens to own printers. too advanced tech.
One of my core use-case for LLMs is investment research.
I'm investing in Japanese equities. 3,800+ listed companies, most with zero sell-side coverage. The filings exist in Japanese, in a format almost nobody parses.
I open-sourced the research system patterns I use. Demo + repo below.
I'm investing in Japanese equities. 3,800+ listed companies, most with zero sell-side coverage. The filings exist in Japanese, in a format almost nobody parses.
I open-sourced the research system patterns I use. Demo + repo below.
March 24, 2026 at 7:08 PM
One of my core use-case for LLMs is investment research.
I'm investing in Japanese equities. 3,800+ listed companies, most with zero sell-side coverage. The filings exist in Japanese, in a format almost nobody parses.
I open-sourced the research system patterns I use. Demo + repo below.
I'm investing in Japanese equities. 3,800+ listed companies, most with zero sell-side coverage. The filings exist in Japanese, in a format almost nobody parses.
I open-sourced the research system patterns I use. Demo + repo below.
How were all these early bitcoin aficionados so terrible at encrypting their emails?
I'm glad they were, but did they not read Cryptonomicon?
I'm glad they were, but did they not read Cryptonomicon?
February 3, 2026 at 2:33 PM
How were all these early bitcoin aficionados so terrible at encrypting their emails?
I'm glad they were, but did they not read Cryptonomicon?
I'm glad they were, but did they not read Cryptonomicon?
Returning from a visit to view Lee's armies in spring 1864, Lincoln's party passed a brigade of black soldiers, who came "screaming, yelling, shouting: 'Hurrah for the Liberator; Hurrah for the President.'"
Lincoln was moved to tears, "his voice so broken by emotion that he could hardly reply".
Lincoln was moved to tears, "his voice so broken by emotion that he could hardly reply".
January 16, 2026 at 6:19 PM
Returning from a visit to view Lee's armies in spring 1864, Lincoln's party passed a brigade of black soldiers, who came "screaming, yelling, shouting: 'Hurrah for the Liberator; Hurrah for the President.'"
Lincoln was moved to tears, "his voice so broken by emotion that he could hardly reply".
Lincoln was moved to tears, "his voice so broken by emotion that he could hardly reply".
"kinetic action" is a euphemism for unauthorized, 'just trust me bro' military strikes, right? just to be clear.
January 3, 2026 at 1:31 PM
"kinetic action" is a euphemism for unauthorized, 'just trust me bro' military strikes, right? just to be clear.
how many mcp servers failed today, claude code?
November 12, 2025 at 7:29 PM
how many mcp servers failed today, claude code?
ETFs and passive investing need an overhaul.
"Congrats on your diversified portfolio!" = "You're now funding companies run by people you'd cross the street to avoid."
As it turns out, "broad market exposure" meant bankrolling a lot of absolute ghouls and corporate sycophants.
"Congrats on your diversified portfolio!" = "You're now funding companies run by people you'd cross the street to avoid."
As it turns out, "broad market exposure" meant bankrolling a lot of absolute ghouls and corporate sycophants.
September 18, 2025 at 4:45 PM
ETFs and passive investing need an overhaul.
"Congrats on your diversified portfolio!" = "You're now funding companies run by people you'd cross the street to avoid."
As it turns out, "broad market exposure" meant bankrolling a lot of absolute ghouls and corporate sycophants.
"Congrats on your diversified portfolio!" = "You're now funding companies run by people you'd cross the street to avoid."
As it turns out, "broad market exposure" meant bankrolling a lot of absolute ghouls and corporate sycophants.
Shipped my first Python package to PyPI 🎉
`edinet-tools` is now live.
Makes it easy to get Japanese corporate filings and analyze them with LLMs, even if you don't understand the language.
`pip install edinet-tools`, then add your API key.
pypi.org/project/edin...
`edinet-tools` is now live.
Makes it easy to get Japanese corporate filings and analyze them with LLMs, even if you don't understand the language.
`pip install edinet-tools`, then add your API key.
pypi.org/project/edin...
edinet-tools
Python package for accessing Japanese corporate financial data from EDINET
pypi.org
August 23, 2025 at 2:21 PM
Shipped my first Python package to PyPI 🎉
`edinet-tools` is now live.
Makes it easy to get Japanese corporate filings and analyze them with LLMs, even if you don't understand the language.
`pip install edinet-tools`, then add your API key.
pypi.org/project/edin...
`edinet-tools` is now live.
Makes it easy to get Japanese corporate filings and analyze them with LLMs, even if you don't understand the language.
`pip install edinet-tools`, then add your API key.
pypi.org/project/edin...
I've been listening to di.fm since 2006, and don't ever change. If you're into electronic music or dance music, this is the best.
DI.FM - addictive electronic music
DI.FM streams the world's most addictive electronic music.
di.fm
June 13, 2025 at 4:09 AM
I've been listening to di.fm since 2006, and don't ever change. If you're into electronic music or dance music, this is the best.
I find myself looking for any spare window of time to write code these days...it's just so insanely productive now.
June 11, 2025 at 3:50 AM
I find myself looking for any spare window of time to write code these days...it's just so insanely productive now.
waiting for `POST api.anthropic.com/v1/messages "HTTP/1.1 200 OK`
praying the response is a valid schema object
ritual
praying the response is a valid schema object
ritual
June 6, 2025 at 2:22 PM
waiting for `POST api.anthropic.com/v1/messages "HTTP/1.1 200 OK`
praying the response is a valid schema object
ritual
praying the response is a valid schema object
ritual
Speaking Tues 5/27 12pm at Japan Innovation Campus, Palo Alto about EDINET API Tools - my open-source project for Japanese financial data.
EDINET = Japan's SEC EDGAR. My Python/LLM tools make this data accessible, combining my Tokyo finance background with building cool stuff.
Come hang out! 😅
EDINET = Japan's SEC EDGAR. My Python/LLM tools make this data accessible, combining my Tokyo finance background with building cool stuff.
Come hang out! 😅
May 24, 2025 at 5:10 PM
Speaking Tues 5/27 12pm at Japan Innovation Campus, Palo Alto about EDINET API Tools - my open-source project for Japanese financial data.
EDINET = Japan's SEC EDGAR. My Python/LLM tools make this data accessible, combining my Tokyo finance background with building cool stuff.
Come hang out! 😅
EDINET = Japan's SEC EDGAR. My Python/LLM tools make this data accessible, combining my Tokyo finance background with building cool stuff.
Come hang out! 😅
Seems like CFPB uniquely vulnerable among federal agencies?
Single-director agency affected by Seila Law (2020), lacks structural independence protections that shield multi-member commissions like the FTC and SEC.
Most Americans can't afford financial/legal advice; they need CFPB protection.
Single-director agency affected by Seila Law (2020), lacks structural independence protections that shield multi-member commissions like the FTC and SEC.
Most Americans can't afford financial/legal advice; they need CFPB protection.
April 9, 2025 at 3:00 PM
Seems like CFPB uniquely vulnerable among federal agencies?
Single-director agency affected by Seila Law (2020), lacks structural independence protections that shield multi-member commissions like the FTC and SEC.
Most Americans can't afford financial/legal advice; they need CFPB protection.
Single-director agency affected by Seila Law (2020), lacks structural independence protections that shield multi-member commissions like the FTC and SEC.
Most Americans can't afford financial/legal advice; they need CFPB protection.
Today I launched an early access version of an idea I've been working on since last fall.
My very first stock purchases were Toyota and Mitsubishi Corp. yrs ago while working in Tokyo, and I am glad to see Japanese companies attracting more attention recently.
corpjapan-2d1df91b29e9.herokuapp.com
My very first stock purchases were Toyota and Mitsubishi Corp. yrs ago while working in Tokyo, and I am glad to see Japanese companies attracting more attention recently.
corpjapan-2d1df91b29e9.herokuapp.com
AI-Powered Japanese Market Insights
corpjapan-2d1df91b29e9.herokuapp.com
April 2, 2025 at 11:26 PM
Today I launched an early access version of an idea I've been working on since last fall.
My very first stock purchases were Toyota and Mitsubishi Corp. yrs ago while working in Tokyo, and I am glad to see Japanese companies attracting more attention recently.
corpjapan-2d1df91b29e9.herokuapp.com
My very first stock purchases were Toyota and Mitsubishi Corp. yrs ago while working in Tokyo, and I am glad to see Japanese companies attracting more attention recently.
corpjapan-2d1df91b29e9.herokuapp.com
No Tesla dealership nearby? You can still make a difference!
Volunteer to phonebank tomorrow for @joshweil.bsky.social.
I did this for the 1st time Fri.
Ask each voter to bring 2-3 friends to the polls - this multiplies your impact! One conversation can inspire many votes. Your voice matters.
Volunteer to phonebank tomorrow for @joshweil.bsky.social.
I did this for the 1st time Fri.
Ask each voter to bring 2-3 friends to the polls - this multiplies your impact! One conversation can inspire many votes. Your voice matters.
March 30, 2025 at 2:45 PM
No Tesla dealership nearby? You can still make a difference!
Volunteer to phonebank tomorrow for @joshweil.bsky.social.
I did this for the 1st time Fri.
Ask each voter to bring 2-3 friends to the polls - this multiplies your impact! One conversation can inspire many votes. Your voice matters.
Volunteer to phonebank tomorrow for @joshweil.bsky.social.
I did this for the 1st time Fri.
Ask each voter to bring 2-3 friends to the polls - this multiplies your impact! One conversation can inspire many votes. Your voice matters.
the deep sigh that comes from realizing the bug you've been working on for hours was just something really stupid you forgot to do
March 22, 2025 at 5:40 AM
the deep sigh that comes from realizing the bug you've been working on for hours was just something really stupid you forgot to do
born to work with llms and csv files and python and japanese corporate financial data
March 20, 2025 at 7:25 PM
born to work with llms and csv files and python and japanese corporate financial data
Human-centered systems, not system-centered humans.
March 19, 2025 at 9:07 PM
Human-centered systems, not system-centered humans.
Reddit clowns on TSLA:
"Once the stock stops going down, it will go up"
Feel free to buy that pile of flaming garbage my mans
"Once the stock stops going down, it will go up"
Feel free to buy that pile of flaming garbage my mans
March 19, 2025 at 4:41 PM
Reddit clowns on TSLA:
"Once the stock stops going down, it will go up"
Feel free to buy that pile of flaming garbage my mans
"Once the stock stops going down, it will go up"
Feel free to buy that pile of flaming garbage my mans
Magnificent energy in front of Palo Alto Tesla dealership on El Camino today, holy cow. #TeslaTakedown
March 9, 2025 at 1:12 AM
Magnificent energy in front of Palo Alto Tesla dealership on El Camino today, holy cow. #TeslaTakedown
trying out claude-3.7-sonnet w/ thinking mode enabled today as I code, should be fun with such a large context
March 4, 2025 at 7:22 PM
trying out claude-3.7-sonnet w/ thinking mode enabled today as I code, should be fun with such a large context
We need an X-Men for cognitive liberty
February 19, 2025 at 4:06 PM
We need an X-Men for cognitive liberty