ひとし田畑

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Joined on Jun 9, 2026

ひとし田畑

Jun 29

My drift detector knew a security group changed — not that it was dangerous, or who opened it

#aws #security #django #devops

4 min read

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ひとし田畑

Jun 29

In information_schema, a generated column looks exactly like a plain one

#postgres #sql #database

3 min read

ひとし田畑

Jun 26

My dashboard showed every number and helped you decide nothing

#django #ux #webdev #devops

5 min read

ひとし田畑

Jun 26

No SPA: a multi-panel database UI in Django + htmx + a sprinkle of Alpine

#django #htmx #webdev

4 min read

ひとし田畑

Jun 25

I shipped a database console with no login — on purpose

#security #postgres #webdev

4 min read

ひとし田畑

Jun 24

I added TOTP 2FA to my Django app in ~40 lines and no 2FA library — but one line decides whether it's real

#django #python #security #webdev

4 min read

ひとし田畑

Jun 24

Streaming a pg_restore through Python without deadlocking

#python #postgres #devops

4 min read

ひとし田畑

Jun 23

The feature that wrote a database row every minute — even when nothing happened

#django #postgres #python #devops

4 min read

ひとし田畑

Jun 23

Try a Postgres index without HypoPG: CREATE INDEX in a transaction you roll back

#postgres #database #performance

4 min read

ひとし田畑

Jun 22

Your Django background scheduler is probably running twice. Here's why, and the migrate chicken-and-egg.

#django #python #devops

3 min read

ひとし田畑

Jun 19

Diffing two EXPLAIN plans as trees, not text

#postgres #database #algorithms

4 min read

ひとし田畑

Jun 19

Your runtimes have an expiry date. I baked the EOL calendar into the app so it works offline.

#devops #python #security #programming

4 min read

ひとし田畑

Jun 18

`terraform plan` is blind to anything not in its state. So I scan AWS directly with boto3.

#aws #terraform #python #boto3

4 min read

ひとし田畑

Jun 17

I built a Django admin UI with no SPA. htmx bit me where I didn't expect: logout.

#django #htmx #webdev #python

4 min read

ひとし田畑

Jun 17

Lie to the Postgres planner: EXPLAIN your query at 10,000 the rows

#postgres #database #performance #sql

3 min read

ひとし田畑

Jun 16

Don't parse SQL to make a query runner read-only

#postgres #sql #database #webdev

3 min read

ひとし田畑

Jun 16

Your Terraform state file is a plaintext secrets store. Mine was too.

#terraform #security #devops #python

3 min read

ひとし田畑

Jun 15

I turned the psql commands I keep forgetting into buttons

#showdev #postgres #django #webdev

4 min read

ひとし田畑

Jun 15

The bug that made my Terraform drift detector cry wolf (and the one-line fix)

#aws #terraform #devops #python

4 min read

ひとし田畑

Jun 9

I'm 62 and I built a self-hosted AWS drift detector because I was tired of spreadsheets

#showdev #aws #devops #terraform

2 min read

DEV Community

ひとし田畑

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Writing Debut

My drift detector knew a security group changed — not that it was dangerous, or who opened it

Want to connect with ひとし田畑?

In information_schema, a generated column looks exactly like a plain one

My dashboard showed every number and helped you decide nothing

No SPA: a multi-panel database UI in Django + htmx + a sprinkle of Alpine

I shipped a database console with no login — on purpose

I added TOTP 2FA to my Django app in ~40 lines and no 2FA library — but one line decides whether it's real

Streaming a pg_restore through Python without deadlocking

The feature that wrote a database row every minute — even when nothing happened

Try a Postgres index without HypoPG: CREATE INDEX in a transaction you roll back

Your Django background scheduler is probably running twice. Here's why, and the migrate chicken-and-egg.

Diffing two EXPLAIN plans as trees, not text

Your runtimes have an expiry date. I baked the EOL calendar into the app so it works offline.

`terraform plan` is blind to anything not in its state. So I scan AWS directly with boto3.

I built a Django admin UI with no SPA. htmx bit me where I didn't expect: logout.

Lie to the Postgres planner: EXPLAIN your query at 10,000 the rows

Don't parse SQL to make a query runner read-only

Your Terraform state file is a plaintext secrets store. Mine was too.

I turned the psql commands I keep forgetting into buttons

The bug that made my Terraform drift detector cry wolf (and the one-line fix)

I'm 62 and I built a self-hosted AWS drift detector because I was tired of spreadsheets

Writing Debut

Want to connect with ひとし 田畑?

Want to connect with ひとし田畑?