Peter Christensen

Announcing Intro to Lisp Workshop

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The first big project by the Chicago Lisp User Group is a half-day workshop to introduce Lisp and its goodness to other programmers. The primary audience is the Chicago Linux User Group but it open to everyone. This is the initial announcement and tentative schedule. The most updated info will be on my Chicago Lisp page.

INTRO TO LISP WORKSHOP

WHO: Programmers interested in learning more about Lisp.

HOW MUCH: The low, low price of 3ish hours of attention span.

WHEN: Saturday, May 31st from 3pm-6pm.

WHERE: Institute of Design, 350 N. LaSalle St, 4th floor, Chicago. Map.

WHAT: A hands-on introduction the the Common Lisp programming language.

Tentative Schedule (presentations will be 30-60 min)

  • Setting up a Lisp Environment (John Quigley): A hands-on walkthrough of how to setup a Lisp environment, Emacs, and SLIME. There will be documentation beforehand about steps to take and which packages to get.
  • Lisp Basics and Idioms (Peter Christensen): Lisp syntax, contructs, basic code, idioms and practices.
  • Common Lisp condition system (need a volunteer)
  • Macros (Craig Luddington): How Lisp lets you write code that writes code that writes code … and why you\’d want to do that.
  • Demos of cool things in Lisp (need volunteers): showing off both neat and practical things that Lisp can do.

We\’re looking for volunteers to do the following:

  • Present on the CL condition system
  • Suggest and present on other aspects of CL not listed here that would be suitable for an introductory session
  • Walk around and help troubleshoot during the first session about setting up your environment.

If you\’re interested in attending or helping, please email me and include “Intro to Lisp Workshop” at the start of the message.

Lessons Learned By A Second Time Dad

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I’ve been quiet since the birth of my second daughter 3 weeks ago. A little too quiet for my taste, so here’s a quick personal post (apologies to those anticipating my usual hardcore technical content).

Lots of people write their impressions as a first time parent, but there’s not much to them. Usually it’s stuff like “Babies are small” and “I’m overwhelmed.” (trust me, I said brilliant stuff like that a couple years ago after my first). This time I’ve got all of the mechanics down pat (cooking while holding an infant, the proper bouncing to rocking ratio, etc) so I’ve had different observations that I was too blown away to notice the first time around. Let’s hope they’re useful to anyone contemplating a second child.

  • Typing with one hand is hard and slow.
  • Watching a newborn is like driving – doesn’t nearly use your whole brain but occupies your body enough that all you can do is think.
  • No matter how much your infant cries, if you jump up from playing with your toddler to care for the infant, then the toddler learns that crying = results. Bad lesson.
  • Being able to fall asleep fast is useful, since you never know how long you’ll get to sleep.
  • Some items of housework are important (clean laundry, empty sink) while most others are not.
  • If you want your kids well taken care of during the day, make sure your wife gets to sleep at night.
  • Anything you want done, get it done fast (see bullet #2 for explanation).
  • Love doesn’t happen automatically, it needs to be cultivated. While I’m thrilled about the newborn, I don’t have the same feelings towards her as I do towards the toddler because I have years of memories, experiences, and interactions with the toddler. But that doesn’t diminish what I have for the newborn – I’m already so much closer to her than I was two weeks or even one week ago.
  • Following up the last point, you have to put in the time and effort if you want to enjoy your kids. Just like you’d never expect to learn something you didn’t work hard at and experiment with, you probably won’t love your kids as much if you don’t put in lots of consistent time in caring for them.

It’s been a great couple of weeks and I look forward to decades more with my two little girls!

Filed Under: Fun

StreamFocus – An Organizational Power Tool Waiting To Be Unleashed

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I’ve been beta testing a new project management software tool called StreamFocus, and unlike most other betas that are either nice or just plain lame and it’s easy to dismiss them. Also, the other products are consumer apps and therefore a) simple and b) extremely streamlined for easy, intuitive use. StreamFocus, unfortunately, is neither of those. So why am I sitting here still writing about it? Because it looks like it will make lots of money for very wealthy customers.

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Chicago Lisp Meeting, Friday 4/18

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Announcing the next Chicago Lisp meeting!

WHEN: this Friday, April 18th at 7pm.

WHERE: 210 S. Clark St, 24th floor (map). Sign in at the front desk, take the elevator to the 24th floor. There is only one suite there and the door will be held open.

WHAT:

  • John Quigley will be giving a presentation on continuations Alan Kay’s Fundamentals of New Computing Initiative (see Viewpoints Research Institute, their NSF proposal, and their one year progress report) (notes will be posted afterwards).
  • Soliciting Lightning Talk topics for next meeting (5/16). Grant Rettke has already signed up for “A Simple Object System Using Macros”. 2-3 more would be nice.
  • Some (short) planning for future meetings, Intro to Lisp workshop, etc
  • Ideas for a project we could hack together

AFTER: Food and drinks. Possibly at Elephant & Castle Pub.

We had 7 people last month, let’s try for more!

If you’d like to hear about future meetings, please subscribe to the chicago-lisp mailing list or send me your email address and I’ll add you to the invite list at Coordinatr.com.

Taking a Roger Clemens Retirement from Startups

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A while ago I announced that I was starting my own internet startup. Since then, I’ve gotten nothing done. Well, not nothing, but nothing that resembles a startup. I did register a domain, setup WordPress, and write a few blog posts, but that was it. And then in a WordPress accident while backing up the database for this blog, I wiped out the blog posts I had written for the startup blog, so now it just links back here. So, since I didn’t have any code or users, and I now no longer even have a blog, I’m pronouncing SmallPunch dead (for now).

So if I didn’t lose much, why quit? A couple reasons.

First, determination and focus are two of the most important requirements to succeed at a startup, especially for one as time constrained as myself (part-time single founder). Right now because of my family situation (2nd baby due any day now), my focus is definitely not on a startup. All of my attention is focused on balancing home needs with work needs and there’s very little time for anything else.

Second, while a part-time founder might succeed with regular, predictable time periods to work, my available time is neither regular nor predictable. I take what I can get, but that’s hardly conducive to getting into the right mindset or the flow. Third, I still feel like I have some infrastructure and technology issues to work out. I’m sticking with Lisp because I think it will help me get the most done in the alloted time I have (I don’t see my free time increasing greatly anytime in the next 18 years), but that carries some costs. I’m still figuring out which CL implementation to go with. Since I lack a decent computer that I can run Linux on, I’m going with CLisp, but I’m a little weary of its lack of threading since I will be doing a web app.

Third, I’m planning on using Weblocks as my web framework, but since it’s at something like version 0.1, it’s only been tested and run on SBCL, so who knows what problems I’d run into using it on CLisp. These are not insurmountable issues, but I do need to take the time to hack them out, and it’s hard to do a good job at that with the psychic weight of a startup hanging over my head.

Fourth, I’d really like to have someone to work with. That’s part of my motive for starting the Chicago Lisp User Group and contributing to Hacker News. I think I might be able to succeed on my own, but for motivation and load-sharing purposes, a co-founder would be really nice. But I want it to be someone I know and am comfortable working with, so I can’t just whip that together.

Here’s what I have accomplished in that time frame:

I’m not exactly lounging! So why do I call it a “Roger Clemens Retirement”? The man retired in 2003, un-retired in 2004 without missing a single game, threatened retirement in 2005 but accepted a generous raise, retired in early 2006 only to un-retire again in the middle of the season, and then retired for the last (?) time in 2007. Long story short, just because he was “out of the game” didn’t really mean he was out of the game. Just like me.

Can YCombinator Be Beaten At Its Own Game?

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Fred Wilson at Union Square Ventures just wrote a post called “Can The Y Combinator Idea Turn Into A Movement?” that set of an interesting discussion at Hacker News. He says that because you can start a company for a small amount of money, investors should back many companies with a small investment instead of a few companies with a large investment ($25,000 * 10 instead of $250,000 * 1). If you have read Paul Graham, know anything about YCombinator, or even just know some basic economics (my current mental hobby horse), this isn’t news or even particularly insightful. It was the discussion around the post that raised some interesting points.

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Using Coordinatr to Run A User Group

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[This is another post where I was writing a book-length comment somewhere and thought I’d just publish it in case anyone else cared. I should keep stats on things like this].

About a month ago, a new startup called Coordinatr announced their launch on Hacker News. I didn’t try it out at the time but I filed it in my mind for later use. Now that I’m the DFGL (de facto group leader) for the new Chicago Lisp User Group, I thought it would be a great way to cut down on the bajillion emails it takes to organize a group of people (combinatorial explosion is not an organizer’s friend). I gave Coordinatr a spin and was quite pleased with the results. I also reread the comments in the discussion on HN and found that the team had incorporated much of the feedback given. Then, when I offered some feedback of my own using their slick collapsible feedback sidebar, I got a response from the team within less than 10 minutes. There are a few rough edges left, but these guys truly care about doing a good job and who knows, half these things might be fixed by the time you read this!

The basic pitch for Coordinatr is “Easy planning for spontaneous events”. These are the “What should we do this weekend?”, “Where should we go to dinner?” type discussions that everyone hates and are irritating enough that it’s almost not worth hanging out with your friends because no one can make a decision. It’s based on real life, so it includes SMS notification for a variety of events (lots of people aren’t always checking email and not everyone has an iPhone). I’ve just setup a few events for the Chicago Lisp User Group that I’m now organizing and setup was a snap. The event is a few weeks away so I haven’t seen it in action yet, but I’ll follow up when I do.

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Recap of 3/21 Chicago Lisp Meeting

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Happy belated Chicago Lisp news!

Two weeks ago (March 21st), we had our first meeting to bootstrap the new Chicago Lisp User Group. We had 7 people show up for the initial meeting:

Craig Luddington
Eli Naeher
Victor Kryukov
John Quigley
Shaneal Manek
Dave Morrow
Peter Christensen

Items Covered:

Future meetings – We decided on monthly meetings, the third Friday of every month, 7pm. The next meeting will be Friday, April 18th where John Q. will give a presentation on continuations. The May meeting will have several lightning presentations – submissions welcome (please post a message on the Coordinatr event)! All but one of the attendees live or work in the city of Chicago, so we decided that all meetings will be held in Chicago.

Meeting locations – The first meeting was held at Ambrosia Cafe (1963 N. Sheffield, Chicago, map: http://tinyurl.com/2koztz). It was a nice place for a meeting but we’d like to find a place to meet with a projector, so presentations can be given and recorded. Some proposed locations are the IIT Institute of Design (350 N. LaSalle St) and the Harold Washington Library (400 S. State St). If anyone has an office or location they’d like to volunteer, please let me know.

Scope – We decided to keep the group and meeting open to the greater Lisp family – Common Lisp, Scheme, Arc, etc. That will be the focus of the group but all are welcome to attend. Some people expressed desire to start or adopt a project that we could work on as a group.

Name – Some people wanted a better name than “Chicago Lisp”, and who can blame them? One nomination as “LispChics” (inspired by NYC’s Lispniks) but I thought it was false advertising (7 guys with laptops, Chics, ??). The name is up in the air, nominations accepted.

Web Presence – John Q. owns the chicagolisp.org domain and Craig L. has a server he volunteered for use. A project we develop could be hosted there, and I recommended a CLiki instance for group notes. I’ve also setup a group on coordinatr.com that I’d like to try out for organizing meetings. You should get an email soon.

The common-lisp.net chicago-lisp mailing list will still be used but only as a supplement. The list is not great because of spam but there are a hundred or so subscribers still on the list that would have no other connection to the group.

Intro to Lisp Workshop – John Q. informed of a planned, all day workshop designed to introduce programmers to using Lisp – from installing and setting up an image to programming basics to advanced concepts. It is planned for a Saturday in May (date TBD, location probably Institute of Design) and volunteers would be appreciated.

Coordinatr – I’ll be trying out a new site called Coordinatr.com to manage the meetings. You can RSVP there, submit ideas for proposals, etc. You should receive email inviting you to the first two meetings shortly after this email. There is also a feed of new events created for this group here: http://coordinatr.com/feeds/rss/vcwxbvdrepk2blkbtwctez . You can get updates and reminders by email and/or SMS, but I think the RSS feed doesn’t get updated (the platform has only been out for a couple weeks). Let me know how this works – I think it’ll be better than a zillion back and forth emails.

You can view the feed without registering at the site, but you need to register AND be invited to see the event website, RSVP, post messages, etc. Good news is that you can invite new people to an existing event once you’ve registered.

Calendar:

Friday, April 18, 7pm: Chicago Lisp Meeting
Location TBD
Presentation on Continuations

Friday, May 16, 7pm: Chicago Lisp Meeting
Location TBD
Lightning presentations, accepting submissions

Some Saturday in May: Intro to Lisp Workshop
Location TBD (probably Institute of Design)
Getting started with Lisp, all-day event

Homework Items:

Name the Group! Send submissions to Peter

Lightning Talk Proposals for May 16 meeting

Locations for future meetings – 3rd Friday of the month, 7pm, ~10 people, preferably with wireless access and a projector. If you have a place, email Peter

Feedback on using Coordinator for managing events

Thanks,
Peter Christensen
DFGL (de facto group leader)

Tasteful Monetization and the Passionate Developer Community

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It’s impossible to read about blogging without hearing talk about “monetization” – making money off the attention your blog gets. This isn’t a problem for most writers, since nobody reads their blog. I’m no blog celebrity, but at this point, I’ve had 4 or 5 articles that were read by several thousand people, so I can’t really say that nobody reads me. I already have a goal to use this blog to write my thoughts and experiences and meet new interesting people, so now I’m tempted to try to make some hosting money, book money, or gadget money while I’m at it. However, I don’t want this to end up looking up like a Nascar uniform, so I have been on the lookout for tasteful ways to monetize.

Fortunately, I’m not the only one to go through this process. Two prominent tech bloggers, Jeff “Coding Horror” Atwood and Reg “Raganwald” Braithwaite have already crossed this bridge. They use Amazon Associate links whenever they mention a book, and I like the idea so much I’ve used it since the beginning. I often recommended books anyway, and there’s no difference for the user between a regular Amazon link and an Associates link. It’s unobtrusive, easy, and useful, so it has been a no-brainer from the start. We’re nerds, we read books, it just works.

I’ve recently come across another way to monetize that supports my goals and intentions for this blog. One of the new batch of YCombinator startups, SnapTalent, is a tech job advertising network that only advertises on hand-picked sites that great developers are likely to read. I think this is a great approach. Screening ensures that the ads only appear on websites that active, passionate developers are reading, and those passionate developers are a lot more valuable than a typical clock-punching, Monster-surfing developer.

What I like about it is that it creates a market for small, smart companies to advertise on that’s actually worth their while, and it makes it easier for smart, passionate developers to find them. Big job sites like Monster and Dice have lots of jobs, but it’s a grimly representative sample of all the bad jobs out there. It would be a waste for a bright startup to advertise there because they would get a grimly representative sample of all the bad job applicants. Therefore, the best companies don’t advertise on these sites and the average gets dragged down even farther.

The alternative is for great companies and great developers to find each other through traditional networking and discovery. This works well and produces the best results, but it is limited by the size of the social networks you belong to. For instance, I don’t really know anyone in Silicon Valley, and I only know of a few small companies in Silicon Valley, so I would be at a big disadvantage if I wanted to move there for a job. Conversely, if there’s a Silicon Valley company that could really use my blend of coding, writing, personal communication, and big-picture problem solving, they wouldn’t find me because I’m in Chicago. Or for that matter, since Chicago doesn’t have a strong network of startups and tech companies, a company in Chicago might not be able to find me either. This is one of the reasons that Silicon Valley is such a big startup hub – its network of people in the startup world is big enough to actually be a useful asset, and it becomes more useful as it grows.

My hope is that SnapTalent will provide a third option. I hope the companies that advertise there have enough success that it becomes a go-to site for companies looking for great developers. I hope that enough great tech writers put the SnapTalent widget on their site that more companies advertise there (right now they’re mostly companies associated with YCombinator, which are all great companies, but only a small subset of what’s out there). Once they do, I think the ads will be seen as a useful way for smart, passionate developers to get acquainted with smart companies in a way that scales beyond the typical “Who you know” network. And even if you don’t work for or apply to these companies, just knowing who they are and what they’re products are is a good enough service worth clicking on the ads for (more people in this world need to know about AnyBots. They just do.).

So, if you have a tech blog of your own and you’ve been complimented on it, join me and SnapTalent in building up the passionate developer community by linking passionate developers to smart companies.

Polyphasic FAIL

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Polyphasic Sleep III has fallen to the forces of normal life. More specifically, a steadily progressing family health situation demands more of my time during the day, to the point where I pretty much can’t take naps at home during until everyone’s asleep, and I’ve had to trim my time at work so tight that I can’t get even get one nap, let alone one, during the day. The work thing was a problem even before. I felt okay going out to my car for a half hour during lunch but I never quite found a time in the afternoon when I could sneak away. This wasn’t a problem with my first experiment because I had a 40 minute commuter train ride each way where I could sleep. But now that I have a driving commute, I can’t exactly sleep on the way to and fro.

That’s an important consideration for anyone considering polyphasic sleep. For a normal weekday, you pretty much need a nap before, during, and after work, or if you get up and go straight to work, two naps during work. I can’t do the first one because I have to drive, and I can’t do the second because I don’t feel comfortable stepping out twice.

For anyone interested in following my polyphasic sleep experiment (Aaron and others), sorry to disappoint. However, I’ve got a mandatory polyphasic sleep period coming up sometime in the next month when my second daughter is born. My wife is excited for me to go back to polyphasic then so I can take care of nighttime care and feeding. Not exactly what I had in mind, but it’s easier to do when you’re already awake then if you have to wake up for it!

Until next time …zzzzzz…zzzz……zzzzzzzz. (Me hibernating for 7 straight hours)