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2024-07

Note/Book

Inspired by my uncle, I tried a no-salt, no-sugar diet.

My uncle, Shoichiro Nakao, is a cardiologist, and after studying at Harvard Medical School, in 1995, he published a paper in the medical journal NEJM on Cardiac Fabry Disease, which was published from Japan to the world, and he is an amazing person. There is probably only one person in Japan who is so strictly salt-free and sugar-free.
Entrepreneur

[Mia] What I learned from customer support via X (formerly Twitter)

Yesterday, I was looking at X in Mia and the following X post caught my eye! We need to deal with this as soon as possible (sweat)".Although we were able to resolve the error, which in itself was good, the customer response, including the inadequate email forwarding settings, left us with issues to address.So, we decided to implement the following two solutions. - Set up a Google form in the app for bug and error enquiries - Set up a Mia community.
Entrepreneur

[SNS Marketing] How to Create FB and Insta Ad Reel Videos and Verify A/B Testing

This article describes how to create reel-to-reel video ads and how to distribute ads. In my case, I have a policy of "first running a small test with a daily budget of ¥1,000 for a week" for SNS advertising, so I started with a daily budget of ¥1,000 for this time as well.When I first conducted a trial transmission with a budget of ¥1,000 for the following video, the CTR (cost per advertisement until website click) was about ¥30 at first, but it was gradually optimised afterwards, and finally dropped to nearly ¥10 after about three days.
application(Flutter)

[Development] Reflections on Developing a Large Function: Priorities for Function Development and Testing

Although we initially assumed that it would take about a month, we were able to finish the development in about half the time (currently waiting for PR review), which was good in itself, but I would like to describe my reflections (mindset and how efficient it is to proceed with the development) after developing a large function this time as a reminder. I would like to describe it as a reminder of the experience of developing a large feature this time (mindset and how to proceed efficiently with development).
Development/Design

[AWS] How to manage access restrictions on text-to-speech files using S3 signed URLs.

A pre-signed URL provides temporary access to an object in a cloud storage service (e.g. Amazon S3); this URL is signed with specific permissions and an expiry date, allowing the user to securely download or Uploading.
application(Flutter)

[Scenario test tips] How to break it down into MECE and subdivide it moderately.

Notes and tips on writing scenario tests are described. What is required in writing scenario tests is the ability to strike a balance between breaking down the conditions into MECE but not over-dividing them. Scenario testing does not require direct description of the programming code.In other words, it can be described by non-engineers. It may be efficient for the PdM or UIUX person who created the mock-up, for example, to write the scenario test as it is.
Entrepreneur

Procedure and Points to Note when Doing the Procedures for Increasing Capital by Yourself

The other day, after a long time, I prepared the documents for the capital increase procedure by myself and submitted them to the Legal Department, and as expected? I found a flaw and the Legal Affairs Bureau called me and asked me to correct it (they were very polite), so I am writing this down as a reminder. The paperwork is not that difficult and a simple capital increase can be done in 30 minutes, so it is better to do it quickly by yourself and even if there are corrections, just follow the instructions of the person in charge.
Entrepreneur

Flixy “Medication IoT Calendar” Failure Review Part1

Although it is a bit late, I would like to look back on the flixy "Medication Calendar", which I developed as my first major project as a student, before the MELP web interview. The resolution of the target users was low, the user needs were not captured, and the means and purpose of winning the contest were reversed.
Entrepreneur

How to create a Founder-Shareholder Agreement in ChatGPT

I would like to describe how to create a founder-shareholder agreement while using ChatGPT: because of GPT-4o's high accuracy, it will generate the appropriate wording for the agreement from the prompts, so you will be able to quickly go from creation to conclusion in about 30 minutes. As for the pitfalls of the contract, the GPT can also fill in the gaps by asking questions.
Development/Design

[Golang] Practice of Test-Driven Development: From Migration File Creation to SQL Injection Countermeasures

Describes test-driven development in Go language, including migration file creation, SQL injection countermeasures and actual testing methods using dockertest. testutils.RunMySQLContainer function is called to start the MySQL container and connect to the database. RunMySQLContainer function to start the MySQL container and connect to the database.