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Inherited about thirty bottles from the nineties - how do I tell which are still usable?

I am going to be the unpopular one and say do not filter and use the questionable ones. You have two decent pens and thirty bottles of free ink, which means your supply of ink is not the scarce thing here. A coffee filter takes out the visible strands and does nothing about whatever is growing at a scale you cannot see, and the failure mode is a feed you have to soak for a week. Keep the clean ones, bin the doubtful ones, do not be sentimental about a half bottle of Quink.

118 · in/inks-and-nibs ·

'Ship early, ship often' - how early is too early when people are paying from day one?

I polished for fourteen months and launched into total silence, which is the failure mode nobody warns you about because it isn't dramatic. Everything I sweated over - the settings page, the keyboard shortcuts, the animation on the empty state - was invisible to the twelve people who eventually tried it, and the thing they all asked for on day one was an import button I'd never considered. Fourteen months to learn something a rough version would have told me in a fortnight.

69 · in/first-version ·