I have just created a Chrome extension that replaces Cmd‑F when you need to search for many terms at once. Think “ERROR”/“WARNING” or “JavaScript”/“Machine Learning”/“AI”.

It is fast. Really fast. Faster than any similar extension I know. CSS Custom Highlights = no injected wrappers, no jank. (Curious about alternatives? See one and another.)

Keyboard‑friendly. Open Alt/⌥+Shift+H, Next Alt/⌥+Shift+J, Prev Alt/⌥+Shift+K (rebindable).

Finds hard‑to‑spot matches when asked. Hidden/truncated items show up in the list (e.g., a term inside a collapsed section); one click reveals and glows. Hidden is off by default.

Try it now:

• Install from Chrome Web Store: Highlighter — Better than Cmd‑F
• A bit more details on the welcome site: highlighterextension.com

If interested email me at artem.marchenko[at]gmail.com Send your phone number if you’d like to discuss something by voice or in chat.

I used to to fly a paraglider. A great sport (which I started with the awesome Tamkik club in Tampere), but time goes. Family and moving between cities and workplaces - over the last 7 years or so I haven’t done a single flight, so it’s time to admit it and sell stuff to somebody who needs it more.

Starting a SaaS or micro-SaaS business can be challenging, especially when it comes to creating a landing page. As I recently discovered when building AI Feedback Pro, creating a landing page to validate customer interest can be a costly venture. However, I found a solution that cost just $19/year plus the cost of the domain, without sacrificing the essential features.

In this post, I’d like to share my experience and provide you with a list of components and services that will help you build an effective landing page on a budget. Whether you’re just starting out or looking for cost-saving measures, this guide is for you.

Just the list

Where the price isn’t mentioned - it is free on the landing page scale

• Landing page service: Carrd on Pro Standard plan for $19/year, can be used for 10 sites
  • Runner-up: EarlyBird.im for $8/month
• Theme: Carrd’s own template #95 free for Pro Plan users
  • Runners-up: template #106 also free and SaaSy template for $29
• Mailing list to subscribe interested people: EmailOctopus
• Cookieless Analytics: PanelBear for your first users, GoatCounter not too loose the track if landing page is suddenly successful
  • Runners-up: Clicky and Couner.dev
• Surveys: Tally.so
• Illustrations: Undraw + some PlaygroundAI modifications when you want to have something similar, but a little different
  • Runners-up: just google for “undraw alternatives” - there are lots of illustration services free for commercial use
• Logo: Namecheap LogoMaker
  • Runners-up: LogoAI for inspiration if you are fine with recreating it in SVG, BrandCrowd for $8 or TailorBrands for 8€
• Email service: Gandi, but you’ll need to buy domain from them in order to get it for free
• Support chat: Crisp chat
• Bonus: Your service name: ChatGPT as a discussion partner

Now to the details.

How to choose the appropriate level of statistical significance for an AB-test

Nowadays a lot of product managers have to confirm most of their decisions with AB-tests. Yet, it is far not always clear how to choose the parameters for the test. A particularly difficult parameter to tune is often the level of statistical significance. If we choose too high level - tests will fail even though improvements do exist. If we choose too low level - we’ll be getting lots of “confirmations” of false improvements.

When we make decisions based on AB-tests, once in a while we’ll be making mistakes. We can limit the losses caused by such mistakes by choosing the appropriate level of statistical significance.

Signup with the phone number

Imagine that you are a product manager in a company running a typical web service.

You are working on the ways for increasing the amount of signups. You examine the signup process steps and notice that many visitors stop when they need to enter their email address. So you decide to try asking for a phone number instead.

Using phone number for identifying the users is not exactly a widely used practice yet and comes with the need to pay for a text message for activation. However, nowadays people aren’t that much into email anymore and do everything on the phone - so possibly phone number-based signups have the potential for bringing in more users.

VS

Как выбрать уровень статистической значимости для AB-теста и как интерпретировать результат

AB-тесты сейчас применяет, возможно, каждый второй менеджер продукта, однако далеко не всегда ясно, как же интерпретировать результат теста и какой уровень статистической значимости использовать. Используем слишком высокий - тесты возможных улучшений будут проваливаться, хотя улучшения на самом деле есть. Используем слишком низкий - часто будем получать “подтверждения” ложных улучшений.

Независимо от выбранного уровня значимости, принимая решения по результатам AB-тестов, время от времени мы будем ошибаться и наносить ущерб бизнесу. Выбирая уровень статистической значимости тестов (или что то же самое - граничные p-value), мы можем ограничить количество ошибок и балансировать между пользой от оправданно успешных экспериментов и ущербом от ошибочно успешных.

Регистрация по номеру телефона

Представьте себе, что вы - менеджер продукта в корпорации, занимающейся веб-сервисами.

Вы работаете над повышением количества регистраций, внимательно рассматриваете этапы прихода новых пользователей, замечаете, что многие отваливаются на этапе ввода своего email и решаете попробовать заменить email на номер телефона. Пусть это не совсем общепринято и требует отправки небесплатной смски, но сегодняшние пользователи не очень любят электронную почту и часто регистрируются прямо с телефона.

VS

Изначально опубликовано на хабре

Хотите посчитать, во что на самом деле обойдётся вам квартира именно с вашим сложным графиком оплаты страховки, ремонтом и тем, что вы планируете платить коммуналку лишь несколько месяцев пока не сдадите квартиру жильцу?

Здесь можно скачать файл excel с калькулятором, здесь - посмотреть в Google Sheets (скопируйте себе для модифицирования).

Смело добавляйте колонки для типов платежей, которые хотите учитывать, меняйте цифры под ваши условия и получайте результат.

Got GORM 6.1 (Grails 3.3+ or Micronaut), MongoDB 3.2 and strange “Prematurely reached end of stream” errors?

- Check if these happen when trying to save BigDecimal fields and disable it in grails.mongodb.decimalType: false

This post is a slightly updated version of the one published earlier. It was created by Peter Stevens who have later written a whole e-book on Agile Contracts

As a customer or supplier of software services at the beginning of a Software Development Project, you know that there is too much at stake to work with just a verbal agreement. A contract is really just a set of written playing rules. The right rules increase the chance of success for both parties. The wrong rules make cooperation difficult and hinder progress. What are the available playing rules and what is the best approach for a agile project?

This post is a slightly updated version of the one published earlier

Measurement is fundamental to any engineering discipline and the planning of a software creation work is no different. Whenever you plan to make or renew a piece of software the most important metric as the workload size. Measure of size is important because knowing the amount of work to do and the team skills (i.e. velocity) you can easily derive the work costs and duration. Agile software development methods do strive against the overplanning and overdetalization. However, being agile doesn’t mean having no clue on when the work is going to be completed. Vise versa most if not all of the agile methods continuously provide team the current “best guess” on the remaining workload and possibly even options to cut some corners.

This post is a slightly updated version of the one published earlier

• Product backlog always lists items adding value for the customer. It includes functional requirements and non-functional requirements. It can also include items required by the team, but only the ones that will eventually bring value to the customer, e.g. taking into use a continuous integration server in order to guarantee the continuous end product quality.
• Product backlog cannot include concrete low level tasks and requests for building the intermediate artifacts. For example, it cannot include request for producing the design document unless customer has to ship it further for some purpose.
• Product backlog utilizes the simplest and the most effective way for prioritizing requests - a simple list. Such a method does not allow for having 100 absolute max priority features and forces the product owner to actually make decisions about the feature priorities.
• The higher the items are located on the product backlog, the more detailed they are. Items for the closest couple of months are usually quite detailed, while items that will be worked on in some 6-12 month can be defined very broadly and imprecisely.
• When there are several interdependent teams in the company or department, typically they all have a single product backlog and pull their work from it.
• Product backlog does not typically include the detailed requirement information. Usually the final requirement details are figured out with the help of the customer, when the requirement is being implemented.

Ease of use, clear and transparent purpose is what makes the product backlog so useful for seeing into the project status.